The crew fabricates one of their fastest bikes, but an issue with its supercharger arises.

The OCC crew is pushed to their limit when they build a pair of contrasting bikes for a client. Junior designs an ethanol-fueled motorcycle and struggles with during assembly. Junior makes a change to the Yankees bike design, and Senior confronts him.

OCC builds a bike inspired by a 1965 GTO, but this massive job may cause Senior to miss the first deadline of his career. When Junior designs a bike for a corporate client, changes in fabrication throw a wrench in the schedule.

When the OCC crew builds an old school chopper for a longtime fan, Senior must rely on Mikey to get the job done. Junior designs an awe-inspiring trike for a repeat client, and father and son come into the home stretch on the Yankee build.

Senior takes a risk by starting a Spartan Race-inspired build before meeting the client, then has to change course to accommodate his requests. Junior designs a monster trike, but trouble with fabrication of the wheels may mean missing the unveil.

Junior designs a western-inspired motorcycle for country music star Clay Walker. Senior and the OCC guys build a military-themed bike to be auctioned off to benefit families of fallen soldiers. Senior and Junior complete assembly of the Yankees bike.