Season 0 of American Chopper premiered on 2002-09-28.

Season 1 of American Chopper premiered on 2003-03-30.

Season 2 of American Chopper premiered on 2004-01-11.

Season 3 of American Chopper premiered on 2005-03-07.

Season 4 of American Chopper premiered on 2007-01-18.

Season 5 of American Chopper premiered on 2008-01-17.

Season 6 of American Chopper premiered on 2009-04-09.

The Teutuls have been on a wild ride, and it certainly isn't ending any time soon. Paul Sr. has revamped Orange County Choppers - turning it into a complex with a shop, café, bowling alley, restaurant and of course, the showroom - and while OCC has a new look, the crew's antics and endless pranks remain. Meanwhile, Paul Jr. is encountering all new stresses and challenges with a family of his own. Still, though their lives have evolved, the guys' commitment to building the most incredible bikes in existence has never faded - Paul Sr. and Paul Jr. even take steps towards mending their relationship, working together for the first time in 10 years.

Over the past year, Paul Sr. and Paul Jr. have taken steps toward mending their once fractured relationship. Faced with the challenges of a changing market and a need to build mind-blowing bikes, the Teutuls must push their limits on every signature build. Paul Sr. takes a risk at Orange County Choppers as he moves his bike designs in a different direction. However, he also jumps at an opportunity to go back to his roots, designing a throwback line of affordable motorcycles. Meanwhile, Paul Jr. - working to keep up with looming deadlines as he takes on new concepts and builds - challenges himself to build a streamlined bike for the MLB Network, all to impress his father who recommended him for the job.