Dr. Stone (Season 1)

In the modern day, Taiji, a high school student in Japan, has declared that he is going to reveal his feelings to Yuzuriha.  Senku, his brainy nerd pal, is indifferent.  While Taiji trips over his tongue, a pale green light washes over the earth.  Every human being is turned to stone.  3,700 years later, Taiji awakens in a cave, bits of stone still clinging to his skin.  He finds Yuzuriha, who is still a statue.  Nearby, he sees a note from Senku!  Senku had awoke six months earlier and was in the process of rebuilding the world.  He has discovered the 'cure' for the petrification but he is only one person.  With Taiji's help, he mixes up a formula to restore a couple of others: Yuzuriha and Tsukasa.

Tsukasa proves to be both a boon and a curse.  He is a great protector and hunter, but he wants to only restore the young and avoid the technology of the old world.  He is determined to prevent Senku's plan to bring everyone back and return the world to what it was.

Of note, there were some survivors.  The astronauts on the International Space Station saw the event take place.  Eventually, they returned to Earth and started a community on a remote island.  Why didn't they just go to an established town or city and work on restoration?  Don't know.  Anyway, their descendants live in a fairly primitive village that Senku adopts.  With his encyclopedic knowledge of chemistry, metallurgy, electrical engineering, physics, and any other hard science you can think of, Senku sets out to build his Kingdom of Science.  By the end of the first season (24 episodes), he has built a celluar phone, albeit a very big one; maybe a wagon could move it.

While Senku has been busy advancing technology, Tsukasa has been restoring strong young people for a coming clash.  Tsukasa will crush science and establish a pure world.

The characters are very campy, often expressing emotions by shouting.  It is frantic, crazy, and unlikely.  However, the science is accurate.  The show teaches science in every episode, explaining uses for sea shells or bat poop, qualities of tungsten, how a gear can be made to cause back & forth motion, and on and on.  Educational and entertaining!