After a buggy accident, Hibito and Damian are stuck at the bottom of a ravine. Damian's spacesuit is damaged, and he's losing body heat quickly. The odds are against them, but Hibito decides that the unmanned drone Gibson is their key out.

After completing survival training, the NASA astronaut candidates are tasked to participate in the upcoming Comeback Competition. Each team receives an advisory engineer, but Mutta's team is stuck with someone who won't help.

Mutta has returned from his training in the desert and gets some rest as Christmas approaches. Meanwhile, Kenji and Nitta finally learn about the mission they've been assigned to.