An underdog teen joins a group of young Cadets who've been chosen to bond with Robo Mechs from space and defend Earth against alien invaders.

Fifty years in the future, after Shargs (a terrifying alien species) attacked our planet, teenager Stanford Yu works as a janitor at the Sky Corps Military Academy, but he's only dreamed of one thing his entire life: pilot a Robo Mech, giant robots from outer-space who came to our aid. When he finally gets his shot, Stanford and his classmates must put aside all personal differences and work together as a team in order to defend humanity against a new invasion of aliens.