Season 6 of American Chopper begins with the most explosive argument ever seen on the series. Tensions run so high that the company's foundation is rocked as Paul Sr. fires Paul Jr. But is this split between father, son, and the OCC team for good? The drama unfolds this season as the shop carries on and the guys fabricate trademark bikes for clients like the NHL and the Abu Dhabi police department. A big milestone is also celebrated for OCC's 10th anniversary.