American Chopper: Senior vs. Junior

It's been a wild ride for the Teutuls, who are no strangers to family conflict. The relationship between Paul Sr. and his sons, Paul Jr. and Mikey, exploded when Sr. fired Jr. from OCC. Once partners, they are now fierce competitors at contending motorcycle shops. As Paul Sr. continues to build world famous custom bikes at OCC, Jr. opens up Paul Jr. Designs - his startup shop located across the street from OCC's original site. And the location isn't the only rub - Jr. heats-up the competition by bringing back former OCC employees. In the battle between old and new, the father-son duo vie to see who can produce the most innovative choppers.

The cold war between Senior and Junior continues and heats up with a new lawsuit filing. Mikey's art career takes off while he desperately tries to pull the family back together. The season also brings new customers and some familiar faces including Red Jacket Firearms and the captains of Deadliest Catch.