Taiju is about to confess to the girl he loves when a mysterious force hits the Earth and turns every human into stone. Taiju and his friend Senku wake up thousands of years later and begin to rebuild society. – ANN
Streaming: Crunchyroll
Episodes: 24
Source: Manga
Episode Summary: Senku is a scientific genius, and Taiju is a lovable meathead. But neither boy’s particular strengths allow them to escape the mysterious green light that envelopes the Earth and turns all of its people to stone. By sheer force of will, Taiju holds onto his consciousness and vows to finish his confession to his crush, Yuzuriha, should they ever break out of their stony prison.
When Taiju finally does manage to break free, he finds the landscape almost completely transformed. Senku has been awake for 6 months already, and tells him the news – it’s now 3,700 later than when they were transformed, and the world has essentially been thrust back into the stone age. But Senku has a goal, and with his brains and Taiju’s brawn, he believes it’s a realistic one. He plans to use scientific knowledge and technique to recover humanity’s lost technology, and restore civilization to its former glory.