The 100 is a adventurous show when a nuclear explosion had decreased the possibility for human life down on Earth.  But there were other civilians where they were in the sky arch. Eventually 100, younger aged prisoners were sent down to Earth to test if human life was even possible after 97 years.  They had to wear wristbands to monitor them and to assemble them as the group called The Sky People, soon the wristbands started to decrease in flying numbers. It is a free streaming show on Netflix. But get your watching in because this show is scheduled to be removed on December 8, 2025