The series begins with David Jung, a former intelligence operative, living in hiding after faking his death to protect his daughter Rebecca. Rebecca, now 23, works for Juno, David's former partner turned antagonist, who leads the covert agency Caddis. David and Rebecca are estranged, and their reunion is tense as David tries to reconnect and explain his past decisions, including why he disappeared from her life to keep her safe.

David and Rebecca cautiously collaborate to dismantle Caddis, which has become a dangerous and powerful organization under Juno's control. They begin by capturing Oliver, Juno's son, and use psychological tactics to turn him against his mother. They plant surveillance devices, stage false communications, and manipulate events to sow distrust between Juno and Oliver, weakening Juno's leadership and destabilizing Caddis from within.

Meanwhile, David owes a favor to Dootae, a local figure, in exchange for men and munitions to aid in rescuing Rebecca, who is eventually captured by Juno's operatives. Rebecca is brought before Juno, who tries to convince her to rejoin Caddis. Rebecca resists but is caught in a dangerous situation as Juno's forces prepare to move her.

David intercepts Caddis' convoy transporting Rebecca to the airport. A high-speed chase ensues, with David and his team pursuing the convoy. During the chase, David takes down one of the cars, and his team disables another. The last car, carrying Juno and Rebecca, is pursued closely. Gun, Juno's lethal assassin, exits the car and enters an abandoned factory to confront David.

Inside the factory, a brutal fight breaks out between David and Gun. David kills Gun after a fierce struggle. Meanwhile, Rebecca fights off men inside the car, managing to resist capture. The confrontation culminates with David ready to kill Juno, but Rebecca intervenes, pleading with David to spare her life. She insists that Juno is part of her and argues that killing Juno would make them no better than her.

David reluctantly agrees to let Juno go, influenced by Rebecca's plea. Juno escapes with her ally Hollis on a private jet, leaving South Korea. On the plane, Juno apologizes to Oliver over the phone and declares her intention to relocate Caddis' operations to a place where American rules do not apply.

After the confrontation, David and Rebecca reunite with Eunju and Minhee, contemplating moving to America for safety. However, when Rebecca accompanies Eunju to the restroom, they both disappear. David finds Eunju with her throat slit and Rebecca missing, leaving the story on a tense cliffhanger with multiple suspects and unresolved threats, setting the stage for a second season.

The TV show Butterfly (2025) ends with David and Rebecca successfully capturing Oliver and using psychological tactics to turn him against his mother, Juno, thereby weakening her control over the espionage agency Caddis. Rebecca is captured but rescued by David after a violent confrontation. Despite the chance to kill Juno, Rebecca insists on sparing her, demanding she never threaten their family again. Juno and her ally Hollis escape South Korea, leaving unresolved tensions within the family and organization.

Expanding on the ending scene by scene:

The climax begins with David and Rebecca capturing Oliver, Juno's son, as part of a strategic plan to destabilize Juno's leadership of Caddis. They initiate a psychological campaign involving planted surveillance devices, staged false communications, and manipulations designed to make Oliver suspicious of his mother. This internal disruption fractures Juno's control and sows distrust within the agency.

Meanwhile, Juno and Caddis operatives capture Rebecca and take her to an abandoned factory. David launches a high-stakes rescue mission, which includes a high-speed chase and a brutal fight with Gun, Juno's lethal assassin. Despite sustaining serious injuries, David manages to rescue Rebecca from captivity.

During the confrontation, Rebecca stops David from killing Juno. She argues that killing Juno would make them no better than her and insists on sparing Juno's life, but demands that Juno never threaten their family again. This moment highlights Rebecca's complex connection to Juno, acknowledging that Juno is "part of her."

Following this, Juno and her ally Hollis escape South Korea by private jet, evading capture. Oliver, now turned against his mother, calls Juno, who denies any attempt on his life and blames David, apologizing for her failings as a mother. This call underscores the ongoing fractures within the family and the espionage organization.

In terms of character fates:

• David Jung survives his injuries and successfully rescues his daughter, continuing his fight against Caddis.
• Rebecca is freed and chooses to spare Juno, signaling a complicated but resolute stance toward her past and family.
• Juno escapes South Korea, remaining at large but weakened by the internal betrayal and loss of control.
• Oliver is turned against his mother, now cooperating with David and Rebecca, indicating a shift in loyalties.

The ending leaves the espionage conflict unresolved but significantly weakened, with family dynamics and psychological warfare at the forefront of the resolution.

Yes, in the 2025 TV show Butterfly, a major character is gravely injured and possibly dies, but no confirmed deaths occur on screen. Specifically:

• Eunju Kim, David's wife, is found bleeding heavily from a stab wound to her collarbone in the final episode's cliffhanger scene. David discovers her injured in a restaurant restroom after Eunju and Rebecca, David's daughter, have been inside for some time. Rebecca is missing at this moment, and David asks Eunju if Rebecca harmed her, but Eunju is too weak to answer. The severity of Eunju's wound suggests she may die, but the show leaves her fate ambiguous.

• The circumstances of Eunju's injury are unclear. Suspicion falls on Rebecca due to her absence and their tense relationship, but the show also hints Rebecca might have been trying to protect Eunju from an attacker, possibly a suspicious waiter. Rebecca's disappearance could mean she was abducted or chasing the attacker.

• No other character deaths are explicitly shown or confirmed by the end of season 1. The series ends on an open, tense note with unresolved questions about Eunju's condition and Rebecca's role, setting up potential continuation.

The TV show Butterfly (2025) does not have a traditional post-credit scene. Instead, the series ends with a tense and ambiguous final sequence that serves as a cliffhanger, setting up potential storylines for a second season. In the final moments, David finds Eunju gravely injured and bleeding at a restaurant, while Rebecca is missing. David asks Eunju if Rebecca harmed her, but Eunju is too weak to answer, leaving the situation unresolved and the family's danger ongoing.

This ending functions as a dramatic closing rather than a separate post-credit scene, emphasizing the unresolved conflicts and mysteries that the show intends to explore further if renewed.

David Jung, a former U.S. intelligence operative, returns after nine years to reconnect with his daughter Rebecca, who believed he was dead. Rebecca, now an elite assassin working for the spy organization Caddis, has mixed emotions about her father's return, leading to complex family dynamics and spiky banter as they navigate their fraught relationship amid espionage threats.

Juno, a high-ranking operative in Caddis and David's former partner, betrays David by leaking classified information to a terrorist network, which leads to a fatal ambush wiping out David's entire U.S. intelligence team except him. This betrayal drives much of the tension, as Juno becomes a central antagonist pursuing David and Rebecca, and her actions deeply affect their trust and survival.

Oliver Barnes is Juno's son, who was sent to live in England and now works as an aide to his mother. He struggles with seeking her approval and becomes involved in a critical plot point when he unknowingly kills a CIA informant, which leads to an investigation that could expose Juno's darker dealings and influence the power dynamics within the spy organization.

Caddis is a secretive and sinister spy organization that employs Rebecca as one of its most elite assassins. The organization has a dark agenda and is central to the conflict, as David and Rebecca are pursued by Caddis operatives, including Juno. The series reveals Caddis's involvement in espionage, betrayals, and political intrigue that threaten the protagonists' lives and family bonds.

A pivotal moment occurs when Rebecca captures Juno but pleads to let her live, arguing that killing Juno would make them no different from her. Rebecca expresses a complex connection to Juno, stating that Juno is 'part of her.' This decision has significant consequences for the characters and the unfolding of the plot, including potential exposure of Juno's involvement with Russian operatives and internal investigations.

The 2025 TV series Butterfly is a spy thriller with strong family drama elements, featuring action scenes such as gunfights, car chases, martial arts fights, and a constant threat of violence and death. It includes emotional family conflicts, spiky banter, tears, and physical confrontations like punches.

Potentially objectionable or upsetting content for children or sensitive viewers includes:

• Violence: Frequent action sequences involving gunfire, hand-to-hand combat, and chase scenes.
• Emotional intensity: Family conflicts with anger, emotional distress, and tearful moments.
• Threats to life: Characters face serious danger and threats of death throughout the series.
• Mature themes: The show deals with complex family dynamics and espionage, which may be intense for younger audiences.

Given these elements, Butterfly is not family-friendly for young children or highly sensitive viewers due to its violent and emotionally intense content. It is more suitable for mature audiences comfortable with thriller and action drama themes.