Gary carries out the final days of his lonely, 5 year prison sentence aboard Galaxy One, when he meets Mooncake, a little green alien, who has the galaxy's most dangerous bounty hunters chasing after it. Gary swears to keep Mooncake safe.
Gary tries to hide Mooncake safely away on the planet Yarno. But instead, Gary and Avocato are trapped in a terrifying mind-puzzle, while Mooncake is taken from them, and forced to fight in a combat arena called the Deathcropolis.
After Gary is reunited with Quinn, the Galaxy One is hacked by the Infinity Guard, prompting Gary to harvest solar power from a nearby star to repower it. The radiation from the star triggers painful memories from Gary's past.
After locating the source of the gravitational disturbances threatening Earth, the crew of the Galaxy One set out to investigate. Gary takes this opportunity to convince Quinn that he and Avocato are worthy of her trust.
Avocato receives a message from Little Cato seeking rescue. Tensions rise between Quinn and Avocato over whether to save Earth or Little Cato. The crew of the Galaxy 1 will never be the same in the aftermath.
An all out battle ensues as The Lord Commander does everything in his power to capture Mooncake and stop Gary and Quinn from closing the entrance to Final Space.
