Riya awakens disoriented inside a bleak research outpost on a barren world. She has no memory of how she arrived, where she is, or what occurred before she regains consciousness; only fractured, nightmarish images press at the edges of her mind. As she moves through dim corridors she finds multiple dead bodies scattered through the station's modules. The silence and the corpses drive her to the airlock, where she hears a noise and then confronts a man who claims to have responded to a distress signal. He identifies himself as Brion and asserts that he knows her; he says he was in orbit monitoring the mission and came down when communications went dark.

Riya and the man calling himself Brion begin a methodical search of the facility, and occasional flashbacks intrude as they work. Those fragments reveal that they and the deceased were all part of an exploratory team from Earth: Adhi served as the expedition commander, Kevin is Riya's boyfriend, Clarke and Davis are crewmembers, and Brion remained in an orbital platform to keep contact with Earth while the rest of the team stayed on the planet the crew nicknamed Ash (officially K.O.I.-442). Earlier human missions sent to other candidate worlds vanished; finding a habitable planet on this trip constitutes humanity's last realistic chance. The station's systems, however, are failing: life support degrades, alarms warn of breaches, and the ground installation is compromised. Brion informs Riya that they must evacuate within about twelve hours on the next orbital line-up if they hope to survive.

They search for Clarke, the only crew member not yet discovered among the dead. While trying to seal a hull breach brought on by a meteor storm, Riya notices evidence that someone has been moving through the maintenance shafts. Her flashbacks grow sharper and more accusatory: she recalls the crew dying in horrific ways and sometimes sees herself acting in violent ways she cannot fully explain. Brion accesses drone logs and mission recordings from external cameras and relays that during an EVA investigation he found strange atmospheric conversion devices of alien manufacture scattered on the planet. Brion plays a drone recording that shows Davis entering one of the converters; the device suddenly activates and propels a rock fragment at high velocity, striking Davis in the face and killing him instantly. Riya lashes out at Brion for withholding this discovery; footage and memories begin to contradict what she believes she remembers, and in her confusion she asserts that she herself killed Kevin and Adhi though she cannot recall why.

Against Brion's insistence that the mission's scientific breakthrough--the discovery of functioning terraforming machinery--takes precedence over dwelling on the past, the two prepare to board Brion's lander for ascent to the orbital platform. Brion makes clear he will leave on the scheduled automatic takeoff unless they repair the orbiter's systems; time counts down to the line-up. As they ready their suits and ration the dwindling oxygen, Riya experiences a sudden flashback in which Adhi lunges at her and she fends him off by killing him in apparent self-defense. Riya recoils from this memory and then encounters what appears to be Clarke in a spacesuit moving toward her inside the station. Panic drives her into the maintenance tunnels where she searches for Brion and instead finds a corpse: Brion's body lies cold in the narrow service way.

Clarke attacks Riya in the tunnels. Riya runs to a cramped restroom and rigs a shower hose into Clarke's helmet, forcing water into the suit until Clarke drowns. Riya strips away Clarke's helmet and scans the body with the station's diagnostic tools; the scans show no evidence of the infection Riya had feared. With the orbital window closing and their lander sabotaged, Riya returns to the main compartment to ready another means of escape, but she is confronted with a shocking discovery: Brion's corpse has wounds and a time-of-death that indicate he had been dead long before she encountered him and before she had been speaking to him. Where she had believed Brion to be her ally and companion in the search for answers, the forensic readouts prove he arrived at death far earlier; his presence at her side had been a hallucination.

Confronted by the contradiction between her recent conviction that others killed and the physical evidence, Riya realizes the truth of her condition: a parasitic lifeform has infected her and manufactured the illusion of Brion to mask its influence. Medical logs and scattered notes reveal that Kevin brought an alien invertebrate specimen into the station after retrieving material from one of the atmospheric converters. The organism moved into station hardware and the mainframe, disrupting communications with orbit and creating false sensor readings. The parasite then escaped and began to spread, altering the behavior of crew members. The sequence reconstructed from drone footage and recovered logs shows that the parasite first took hold aboard the outpost, causing Adhi to become violent; Kevin killed Adhi during the chaos. The parasite then abandoned Kevin and infected him, at which point Kevin pursued Brion into the maintenance shafts and killed him there. After Brion's death, Riya remained on the surface to pursue the alien technology. When Kevin later confronted Riya, she killed Kevin in a confrontation while trying to control the outbreak. In other memory fragments Riya believed she killed Adhi herself and in isolated moments admits to killing others, a fact that had earlier obscured the actual sequence for her. The parasite, however, did not limit itself to driving others mad; at some point it transferred into Riya and took advantage of her damaged recollection, producing vivid but false interactions, including the presence of Brion as a living man.

Riya's damaged recollections include an attempt at suicide. Believing she could end the parasite's control by killing herself, she had swallowed potassium cyanide from the station's medical bay. Monitors show the toxin entering her system but then disappearing; the parasite altered her physiology to neutralize the poison and keep her alive as its host. Once she understands the parasite's extent, the entity itself communicates with her: it claims its species colonized the planet long before humans arrived, and that humans are inefficient and therefore suitable to be absorbed and improved through the parasite's intervention. The creature asserts that it has chosen Riya as a vessel to bring its evolutionary plan into being.

Riya refuses to surrender. She has the station medbot perform a surgical removal of the organism from inside her, and she watches as the medical procedure extracts a biological mass from her cranial tissues. For a moment she senses relief, but the parasite's reach remains. The extracted organism animates Brion's corpse; the dead man rises under the parasite's influence and attacks. Riya fights back and grabs a welding torch in the cramped compartment. She grapples with Brion's reanimated body and uses the torch to ignite the parasite and the corpse. She pushes burning flesh into coolant and wiring, setting adjacent structures aflame, and the station begins to burn. She stokes the fire and forces it to spread to the modules that housed the alien equipment.

Before escaping the conflagration, Riya proceeds to the lander and restores its control systems. She repairs wiring and resets the launch sequences, manually overriding sabotage on the craft so that it will ascend to orbit. With the welding torch still hot and flames licking through the corridors behind her, she locks the lander to automatic and initiates ascent. The vessel leaves the planet's surface, carries her up through black sky, and heads toward the orbital platform where Brion had claimed to have been stationed. She believes herself free when she docks with the orbital facility and moves through its corridors.

Upon arrival at the orbital station, sensors and logs indicate a familiar pattern: the infection has spread beyond the surface outpost. The orbital platform's modules show signs of alien devices and infestation, and she finds indications that the same parasitic presence has infiltrated systems and personnel in orbit. The film's final direct scene shows Riya confronting the station's compromised state as the implication becomes apparent that the parasite's network extends into orbit and possibly beyond.

A mid-credits scene follows, showing the outpost's surface station taken over more completely by the alien organisms, with the parasite's presence solidified in both hardware and corpses. The image confirms that despite Riya's efforts to destroy the specimen on the ground and her flight to orbit, the infestation has already propagated beyond the planet, leaving her unknowing and human survival in jeopardy.

The movie Ash (2025) ends with Riya successfully killing the parasitic creature that had infected and killed her crew, using a handheld flamethrower. She and Brion then escape the ground station to the orbiting space station, which offers a chance for survival and possibly returning home. However, in a mid-credits scene, it is revealed that the parasite, or another of its kind, has stowed away on the orbiting station, wrapping its tentacles around it, leaving an open-ended threat.

In a detailed, scene-by-scene narrative of the ending:

Riya and Brion, after discovering the gruesome deaths of their crew on the planet Ash, prepare to leave the compromised ground station. The station's life support systems are failing, and a meteor storm causes a hull breach, adding urgency to their escape. Riya experiences flashbacks revealing that Clarke, the missing crew member, was infected by an unknown parasite that drove her psychotic and responsible for the crew's massacre.

As they work to seal the breach, Riya finds evidence that Clarke has been moving through the maintenance shafts, confirming her suspicion that Clarke is still alive but transformed by the parasite. The tension escalates as Riya and Brion confront the reality of the parasitic threat sabotaging the station and killing the crew.

In the climax, Riya uses a handheld flamethrower to kill the parasite, which had been using Brion's body as a vessel. This act seemingly ends the immediate threat. Following this, Riya and Brion make their way to the orbiting space station, which is their only hope for survival and a possible route back to Earth.

The final moments show them arriving at the orbiting station, but the film does not depict their fate beyond this point. Instead, the mid-credits scene reveals a chilling development: the parasite, or a similar organism, has managed to stow away on the orbiting station. Its organic, goo-soaked tentacles are wrapped around the station, indicating that the threat has not been fully eradicated and may continue to endanger them or future missions.

Regarding the main characters at the end:

• Riya survives the ordeal on the ground station, kills the parasite, and reaches the orbiting station alive.
• Brion also survives until the end, but his body was briefly used by the parasite, indicating he was compromised but ultimately rescued by Riya.
• The other crew members, including Adhi, Kevin, Clarke, and Davis, are dead, victims of the parasite's infection and Clarke's psychosis.
• Clarke is implied to have been transformed into the parasite's host and is responsible for the crew's deaths.

The ending leaves Riya and Brion stranded on the orbiting station with the parasite's presence looming, setting up a potential continuation of the story, though no sequel is confirmed.

Yes, the movie Ash (2025) has a post-credits scene. After the main story concludes with Riya escaping the infected planetary station and heading toward an orbiting space station, the post-credits scene reveals a chilling development: the orbiting station is shown entangled by the same organic tentacles of the alien parasite that had infested the planetary base earlier. This strongly suggests that the parasite, or at least part of its species, managed to stow away on Riya's ship and has now reached the orbiting station. The scene implies that the parasite's threat is not over and leaves open the possibility of further spread or a sequel, although the film itself is largely self-contained.

In detail, the post-credits image shows the space station wrapped in the parasite's organic goo-soaked tentacles, reminiscent of how the parasite had taken over the planetary station's machinery. This visual confirms that despite Riya's efforts to destroy the parasite on the planet, it survived by hitching a ride with her. The parasite's goal appears to be to spread beyond the initial crew and potentially infect humanity on a larger scale.

Thus, the post-credits scene serves as a final ominous note, indicating that the alien parasite's menace continues beyond the film's main events.

The alien creature is a parasitic entity that originally inhabited the planet Ash. It manipulates the minds of the crew members, taking control and causing them to attack each other. The parasite eventually lodges itself inside the protagonist Riya's skull, manipulating her perceptions and making her see manifestations such as Brian, who is actually a part of the parasite's influence rather than a real person.

Clarke is the only crew member not initially found among the dead. Riya suspects Clarke is still alive and infected by an unknown entity that caused her to become psychotic, making her responsible for the crew's deaths and the sabotage of the station.

Riya and Brion are part of the exploratory expedition crew; Riya wakes up on the planet's station while Brion stayed on the orbital station to maintain contact with Earth. Brion arrives at the ground station after receiving Riya's distress call, and together they investigate the crew's massacre and try to survive.

The crew members, including Adhi, Kevin, Clarke, and Davis, were found dead under horrific circumstances. Riya experiences flashbacks suggesting she may have killed some of them, but it is later suspected that Clarke, infected and psychotic, was responsible for the murders and sabotage.

They face a failing life support system and a hull breach caused by sabotage. They have only twelve hours to reach the orbital station before oxygen runs out, all while dealing with paranoia, amnesia, and the threat of Clarke's possible presence.

The movie Ash (2025) is not family friendly and is rated R due to bloody violence, gore, and strong language. It is best suited for mature audiences aged 17 and older, and is considered unsuitable for children and younger teens because of its intense and graphic content.

Potentially objectionable or upsetting aspects for children or sensitive viewers include:

• Graphic and bloody violence with gore, especially during the climax.
• Disturbing and unsettling imagery related to horror and cosmic terror.
• Strong language throughout the film.
• Psychological horror elements and intense tension that may be distressing.
• Some scenes involving body horror and fight sequences with violent action.

Parents are advised to preview the film or watch the trailer first to assess its intensity and decide if it aligns with their family's viewing preferences.

In the 2025 film Ash, there is no mention or indication of a dog character, nor any dog dying. The plot centers on astronaut Riya waking up on a distant planet's research station with her crew dead and struggling with amnesia and paranoia. The story focuses on the mystery of the crew's deaths, a parasitic entity, and survival, with no reference to a dog or pet.

Therefore, the dog does not die in Ash (2025) because there is no dog featured in the movie.