Vertex and Vett launch a major assault on the FCPD to claim the last artifact and take over the city. Meanwhile, Spin works to uncover the truth about his past and to figure out what Vertex's plan is. With the final artifact finally in Vertex's reach, it's up to Spin, Penny and the rest of the FCPD to stop the city from falling. But while the Kei'zatsu struggle to defeat Vett without Pounder's leadership, Spin goes straight to the source to put an end to his troubles once and for all! Spin also discovers his tribe's name and information about his past.