American Chopper

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

Junior designs a western-inspired motorcycle for country music artist 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 assemble the Yankees bike.

Senior and Junior begin restoring a 1951 Buick, but they don't always go by the book; Senior risks everything by moving designs away from their famous choppers; Junior challenges himself to build a streamlined bike for the MLB Network.

Junior designs a bike inspired by a futuristic big rig, but the massive amount of fab crushes his schedule; the OCC team builds a vintage military-style bike with sidecar to benefit a foundation for wounded veterans.

Senior goes back to his roots, designing a throwback brand of affordable motorcycles, to sell out of the OCC Showroom: Junior challenges himself to build a bike using multiple aluminum parts.

OCC builds an aggressive paintball bike, but Senior and Josh have creative differences; Junior designs a farm-inspired bike with a surprise element; Senior and Junior attempt to get the Buick running and celebrate Junior's birthday.