The episode begins with Senku and his friends, Taiju and Yuzuriha, continuing their exploration of the world that has been petrified for thousands of years. They are in a dense forest, surrounded by the remnants of nature reclaiming the land. Senku is determined to find a way to revive more people from their petrified state, and he is particularly interested in the potential of the petrification process itself.

As they venture deeper into the forest, they come across a massive stone statue of a prehistoric creature, which sparks Senku's curiosity. He explains to Taiju and Yuzuriha that this creature is a woolly mammoth, a species that roamed the Earth two million years ago. The sight of the mammoth statue serves as a reminder of the vast timeline of life on Earth and the changes that have occurred since then.

Senku's scientific mind races with ideas about how to utilize the petrification process to their advantage. He hypothesizes that if they can find a way to reverse the petrification, they could potentially revive the woolly mammoth and other extinct species. This leads to a discussion about the importance of understanding the past to build a better future. Senku's passion for science and discovery is palpable, and his friends are inspired by his vision.

The trio then decides to set up a temporary camp near the mammoth statue to conduct experiments. Senku begins to gather materials and formulate a plan to create a revival serum. He explains the process of extracting the necessary components from the petrified remains of the mammoth, emphasizing the need for precision and care. Taiju and Yuzuriha assist him, eager to contribute to the scientific endeavor.

As they work, they encounter challenges, including the difficulty of breaking down the petrified materials without damaging them. Senku's frustration grows as he realizes that time is of the essence, and they must act quickly to make progress. He pushes himself and his friends to work harder, demonstrating his determination to succeed despite the obstacles.

During their experiments, they discover that the petrification process has left the mammoth's DNA intact, which gives Senku hope that they can successfully revive it. He explains the significance of this discovery, highlighting the potential implications for their understanding of genetics and evolution. The excitement in the air is palpable as they realize they are on the brink of a groundbreaking scientific achievement.

As night falls, the group reflects on their progress and the challenges that lie ahead. Senku shares his vision for the future, where they can rebuild civilization using the knowledge of science. His friends express their unwavering support, motivated by Senku's passion and leadership. The bond between them strengthens as they face the unknown together.

The episode concludes with a sense of anticipation and determination. Senku, Taiju, and Yuzuriha are ready to take on the next phase of their journey, armed with newfound knowledge and a shared goal. The weight of the past and the promise of the future hang in the air as they prepare to continue their quest to revive humanity and explore the wonders of the world that has been lost for so long.

In the ending of "Dr. STONE" Season 1, Episode 7, titled "Where Two Million Years Have Gone," Senku and his friends successfully revive a prehistoric human named Tsukasa Shishio. Tsukasa, who has a strong belief in the survival of the fittest, becomes a significant figure in the new world. The episode concludes with Senku and Tsukasa's differing ideologies clashing, setting the stage for future conflicts.

As the episode unfolds, we begin with Senku and his companions, Taiju and Yuzuriha, continuing their quest to rebuild civilization after the petrification event. They are in the midst of their efforts to gather resources and knowledge to revive humanity. The atmosphere is filled with a mix of excitement and trepidation as they prepare to bring back the first human from the stone age.

The scene shifts to Senku's laboratory, where he meticulously works on the revival fluid. His determination is palpable; he is driven by a vision of a scientifically advanced future. Taiju, filled with enthusiasm, supports Senku's efforts, while Yuzuriha expresses her concerns about the potential consequences of reviving someone from a time so distant.

As they complete the revival fluid, the trio heads to the petrified body of Tsukasa Shishio, a formidable figure from the past. The moment is tense, filled with anticipation. Senku injects the revival fluid into Tsukasa, and after a brief moment of suspense, Tsukasa awakens. His first reaction is one of confusion, but it quickly shifts to a fierce determination as he assesses his surroundings.

Tsukasa's character is introduced with a strong presence; he embodies the ideals of strength and survival. He quickly establishes his philosophy that only the strong should be revived, believing that the weak should not be brought back to life. This ideology starkly contrasts with Senku's vision of a world where science and knowledge prevail.

As Tsukasa begins to understand the new world, he expresses his desire to create a society based on strength and survival, rejecting the notion of reviving those he deems unworthy. This sets up a fundamental conflict between him and Senku, who believes in the potential of all humanity, regardless of their past weaknesses.

The episode concludes with a powerful moment as Tsukasa and Senku stand on opposite sides of a philosophical divide. Tsukasa's fierce gaze and Senku's unwavering resolve highlight the tension between their beliefs. The final scene leaves viewers with a sense of impending conflict, as the two characters represent opposing visions for the future of humanity.

In summary, the episode ends with Tsukasa's revival and the establishment of a significant ideological conflict between him and Senku, setting the stage for future confrontations and developments in their quest to rebuild civilization.

In the episode "Where Two Million Years Have Gone" from Dr. STONE, there is indeed a post-credit scene. After the main story concludes, the scene shifts to a serene and picturesque view of a lush forest. The camera pans down to reveal a group of small, primitive humans, who are depicted as cavemen. They are engaged in a simple yet lively interaction, showcasing their rudimentary lifestyle.

As the scene unfolds, one of the cavemen is seen attempting to create fire using traditional methods, while others are gathering food and playing. This moment serves as a stark contrast to the advanced scientific endeavors of Senku and his friends. The scene is light-hearted and humorous, highlighting the juxtaposition between the primitive world and the scientific progress that Senku is striving to achieve.

The post-credit scene subtly hints at the long journey of humanity and the potential for civilization to evolve once again, echoing the themes of rebirth and discovery that are central to the series. It leaves viewers with a sense of curiosity about the future developments in the story and the fate of both the modern characters and these primitive humans.

In this episode, Senku discovers that the petrification process is reversible and that it can be triggered by a specific chemical compound. He realizes that the key to restoring humanity lies in understanding the science behind the petrification.

Senku plans to revive the petrified people by creating a revival fluid using nitric acid and alcohol, which he believes will restore their bodies to their original state.

Taiju plays a crucial role in this episode as he is determined to revive Yuzuriha, his love interest. His emotional motivation drives him to support Senku's scientific endeavors and to help gather the necessary materials for the revival fluid.

Senku and Taiju face several challenges, including the need to find specific natural resources like alcohol and nitric acid. They also encounter the dangers of the wild, including aggressive animals and the need to navigate the unfamiliar landscape.

The episode highlights the deep bond between Senku and Taiju as they work together towards a common goal. Their friendship is tested by the challenges they face, but their mutual support and shared determination to revive their friends strengthen their relationship.

In "Dr. STONE" Season 1, Episode 7, titled "Where Two Million Years Have Gone," there are a few elements that may be considered potentially objectionable or upsetting for children or sensitive viewers:

1. Violence and Conflict: The episode features scenes of conflict and tension between characters, which may include physical confrontations or aggressive behavior.

2. Destruction and Survival Themes: The backdrop of a post-apocalyptic world includes themes of survival, which can be intense. Characters face the harsh realities of their new environment, including the struggle for resources.

3. Emotional Struggles: Characters experience feelings of loss, loneliness, and existential reflection, which may resonate deeply and evoke strong emotions.

4. Scientific Concepts: The episode delves into scientific explanations and theories that may be complex or confusing for younger viewers, potentially leading to misunderstandings.

While the show is generally aimed at a younger audience, these elements may require parental guidance for younger children or those who are particularly sensitive to such themes.