Have not tried watching this, but sounds interesting. Might try the book it's based on:
https://the100.fandom.com/wiki/The_100
After a nuclear apocalypse devastated the surface of Earth, the only survivors were the inhabitants of 12 space stations that were in orbit at the time. Since then, three generations have survived in space but now resources are running out.
They are sending 100 of their criminals to Earth to see if it is survivable.
"The 100" are faced with difficult decisions about life, death and the continued existence of the human race.