The third season of Dr. STONE, titled "New World," begins with Senku and his crew returning from a balloon flight. Senku plans to build an oil-powered ship to reach the source of the petrification ray, but first, they must locate an oil field. To prepare for the journey, they focus on securing large amounts of preserved food. Using their balloon and search teams, they locate cedar trees for shipbuilding and wild animal herds for hunting. To increase food production, Senku introduces crop farming, marking a shift from foraging to agriculture. Ryusui and Senku agree on the need to find a professional chef to improve their food supply.

Senku reveals that they have run out of Revival Fluid, essential for de-petrification. Gen negotiates with Mami to obtain a hidden flask of the fluid. They locate and revive Francois, Ryusui's professional butler, who quickly begins producing non-perishable sweet bread. Minami demands that Senku fulfill his deal with Gen, so Senku recreates a deer roast, satisfying the agreement.

The crew then sends Senku, Soyuz, Kohaku, and Gen to find islanders. Ryusui discovers Suika stowed away on the ship. Ukyo and Ginro find statues underwater, realizing these statues could not be from the original petrification event 3,700 years ago because the island was uninhabited before the astronauts arrived. This means the statues were petrified much later. Losing radio contact, Soyuz and Gen find everyone on board petrified except Suika, whom Ryusui saved by throwing her overboard. The shock triggers Soyuz's memory that he and his parents left the island to escape something.

Senku and Gen use forensic and psychological profiling to analyze evidence of foraging and deduce that a young girl of average height with dark hair lives by the mountains. They soon spot the girl, Amaryllis, and learn from her conversation that she is engaged to an anonymous Master who uses petrification. Senku approaches Amaryllis openly, surprising her by showing other living people. A commotion leads them to Amaryllis' village, where a mob plans to rebel against the Master. For safety, Senku incapacitates the mob with chloroacetone, a World War I tear gas.

Senku and his team discover that the island is ruled by Emperor Ibara, who commands a petrification weapon similar to the one that turned humanity to stone. This weapon is a major clue to the petrification mystery but poses a formidable threat. Ibara is also a genius intellect, rivaling Senku. The crew realizes they cannot dominate the island through direct confrontation and must rely on run-and-gun tactics and careful planning.

The heroes face setbacks as many of them are petrified by Ibara's weapon. They regroup and prepare a counterattack, focusing on outsmarting Ibara rather than brute force. Senku and his allies work on developing scientific solutions and strategies to neutralize the petrification weapon and confront Ibara's forces.

Throughout the season, the crew explores the island, uncovering more about the petrification technology and the people affected by it. They encounter various challenges, including hostile villagers loyal to Ibara and the dangers of the island's environment. Senku's leadership and scientific ingenuity drive the group's progress as they seek to unravel the mystery behind the petrification beam and restore humanity.

The season ends with the crew making significant advances toward understanding the petrification phenomenon and preparing for a decisive confrontation with Emperor Ibara. The story sets the stage for further exploration of the "New World" and the ultimate resolution of the petrification mystery.

Short Narrative Ending: Dr. Stone Season 3, titled "New World," concludes with Senku and his friends successfully reviving Tsukasa using the revival fluid after petrifying him with the Medusa device. Senku reveals their next goal is to reach the moon, and Tsukasa agrees to join as a protector. The group prepares to travel the world to gather resources for their lunar mission. Ryusui offers a cash reward for spotting land first as they set sail.

Expanded Narrative Ending:

The final episodes of Dr. Stone Season 3 are filled with pivotal moments that set the stage for the characters' future adventures. The story begins with Senku and his friends facing the challenge of reviving Tsukasa, who had been petrified by Ibara's Medusa device. To revive him, they first need to petrify him again using the Medusa, which they manage to do after gathering enough power. Once Tsukasa is petrified, they use the revival fluid to bring him back to life.

Upon waking up, Tsukasa is informed by Senku that their next goal is to reach the moon. Tsukasa quickly realizes he is being asked to join as a protector, a role he accepts. This decision highlights Tsukasa's loyalty and willingness to support Senku's ambitions.

Meanwhile, Gen suggests that everyone paint their cracks back on as a form of symbolism, acknowledging that without the Medusa, they cannot heal Senku's cracks. This act symbolizes their acceptance of their current state and their determination to move forward despite their physical limitations.

As the group prepares for their lunar mission, Senku explains that they will need resources from around the world. They begin packing their ship, planning to set sail before winter arrives. Yuzuriha and Kaseki use Senku's plans to construct a 3-D road map of their future voyages, marking cities they plan to establish worldwide while reviving people and gathering supplies.

Ryusui, ever the entrepreneur, offers a cash reward to whoever spots land first, which grabs Tsukasa's attention. Gen and Minami caution Ryusui not to be too flashy around Tsukasa, who dislikes displays of wealth. Despite this, Ryusui believes that money can still be a powerful resource in their new world.

The season concludes with the crew ready to embark on their global journey, united in their quest to reach the moon and rebuild society. Each character plays a crucial role in this endeavor: Senku as the leader and strategist, Tsukasa as the protector, Ryusui as the economic mind, and the rest of the crew contributing their unique skills and strengths.

As for the fate of the main characters, Senku remains the driving force behind the group's ambitions, with his cracks still a reminder of his past encounters. Tsukasa has found a new purpose as a guardian, supporting Senku's vision. Ryusui continues to leverage his business acumen to aid the group. The rest of the crew, including Gen, Yuzuriha, and Kaseki, are all set to play vital roles in the upcoming adventures as they travel the world and work towards reaching the moon.

There is no specific mention of a post-credits scene in the provided information for Dr. Stone Season 3, titled "New World," produced in 2023. However, the season does include significant plot developments and cliffhangers that set the stage for future episodes.

In Season 3, the story continues with Senku and his friends working together to build a ship capable of crossing the ocean to uncover the mystery behind the global petrification. They face various challenges, including finding resources and advancing their technology to construct the vessel. Along the way, they encounter new characters and obstacles, such as the mysterious statues underwater and the enigmatic Master who uses petrification.

One of the key plot points involves Senku and his team discovering a young girl named Amaryllis, who is engaged to this Master. The team's interactions with Amaryllis lead to a confrontation with a mob planning to rebel against the Master, which Senku resolves using chloroacetone to ensure everyone's safety.

The season also explores themes of cooperation and scientific advancement as Senku and his allies work to revive more people and build their capabilities for future adventures. However, without specific details on a post-credits scene, it's unclear if there are additional plot reveals or teasers beyond the main storyline.

The petrification weapon is a central plot element in Season 3, wielded by the island's ruler Ibara. It can turn people into stone, which shocks Senku and his friends as they discover others who can control the green beam that caused the petrification event. This weapon is a major obstacle for Senku's group, leading to many of them being turned to stone and forcing them to devise countermeasures and infiltration tactics to confront Ibara and his forces.

Amaryllis is a young girl living on the island ruled by the Master who controls petrification. Senku and Gen identify her through forensic and psychological profiling as a forager near the mountains. She is engaged to the Master and becomes a key figure when Senku approaches her openly. Amaryllis's village plans a rebellion against the Master, and she provides important information about the petrification beam, including a close encounter she had five years prior.

Senku and his team initially suffer heavy losses, with many members turned to stone by the petrification beam. They rely on scientific ingenuity and tactical infiltration, including using chloroacetone (World War 1 tear gas) to incapacitate hostile villagers. Kohaku volunteers to infiltrate the Master's stronghold by becoming the 'cutest girl' to get close and steal the weapon. Senku also works on creating revival fluid and other scientific countermeasures to fight back against Ibara's forces.

Senku faces the challenge of being outmatched by Ibara, who is also a genius intellect and commands the petrification weapon. Senku must balance scientific innovation with tactical caution, as his team is not confident in direct combat dominance. Additionally, Senku experiences moments of vulnerability, including being turned to stone again during the season. He also deals with mysterious messages from a figure called WHY-MAN, who sounds like Senku himself, adding a layer of psychological intrigue.

The 'three-way final battle' involves Senku, Ibara, and a secondary antagonist named Moz. This conflict is a climactic confrontation where Senku must face both Ibara, the ruler with the petrification weapon, and Moz, who is aware of intruders in the Petrification Kingdom but fights independently. This battle tests Senku's scientific prowess and strategic skills as he tries to overcome two powerful adversaries simultaneously.

Dr. STONE Season 3, titled "New World," is generally rated PG-13 / TV-14, making it suitable for teens 13 and older rather than young children. It contains mild violence, mild profanity, and mild frightening or intense scenes, but nothing extreme or graphic. The show includes some use of mild profanity (words like "shit," "dick," and "crap"), mild alcohol and antibiotic use, and some emotional moments that might be upsetting for sensitive viewers, such as character deaths referenced from previous seasons.

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

• Mild violence and action scenes, typical of shounen anime, but not excessively graphic or gory.
• Mild profanity scattered throughout the series.
• Emotional intensity, including moments of character loss or tension that may be upsetting.
• Themes involving survival and conflict, though these are presented with a focus on science and human ingenuity rather than brutality.

There is no significant sexual content or strong language, and the show emphasizes science, adventure, and human spirit. Overall, it is family-friendly for older children and teens but may not be suitable for very young children or those sensitive to mild violence and emotional scenes.

In summary, Dr. STONE Season 3 is appropriate for teens and older viewers, with mild content warnings for violence, language, and emotional intensity but no major objectionable material.