Ben Tennyson, his cousin Gwen and Kevin Levin encounter the Forever Knights looking for a piece of alien tech at a pier. They also meet an off-world Tetramand Plumber named Gorvan, who is searching for illegal alien tech, and recruits them to help him.
The trio retrieves components from various places and defeating the Forever Knights and Pickaxe Aliens that were guarding them. Gorvan grows increasingly suspicious with each component collected, and the trio decide to keep an eye on him. Eventually, they learn from Max Tennyson that Gorvan is a disgraced Plumber who was thrown out of the organization for hoarding and selling illegal alien technology. Kevin decides to hunt down Gorvan without backup, with Ben giving chase.