Surrounded by strangers all competing for one of the six slots to travel to Jupiter's moon, Europa, Naomi, an Iranian-American science genius, finds a friend in Leo, an Italian championship swimmer, as the training tests their limits.
As Naomi and her fellow teen astronauts investigate the fate of their predecessors on the Europa colony, back on a deteriorating Earth, Leo works with a renegade scientist to warn the crew about hostile extraterrestrials.
