Gary carries out the final days of his prison sentence aboard the Galaxy One, when he meets Mooncake, an alien who is being chased by bounty hunters; Gary swears to keep Mooncake safe, not knowing the alien is a planet-destroying super weapon.
Gary and Avocato must chase down the ruthless bounty hunter, Terk, before he can tell the Lord Commander that Mooncake is aboard the Galaxy One.
Gary tries to hide Mooncake safely away on the planet Yarno; Gary and Avocato are trapped in a terrifying mind-puzzle; Mooncake is forced to fight in a combat arena called the Deathcropolis; Quinn investigates the gravitational disturbance.
After the Galaxy One is hacked by the Infinity Guard, Gary has to harvest energy from a nearby star to reignite the engines; the radiation poisoning from the star sends Gary into a trance of painful memories; Gary and Quinn are finally reunited.
Quinn realizes the only people she can trust are Gary and the crew of the Galaxy One.