American Chopper

Sr. and Jr. go head to head during builds for Northrop Grumman and the NHL.

The crew clowns around at the circus and builds a bike to honor Woodstock.

Sr. builds bikes for contractors who are doing work on the shop.

Sr. takes trips to Alaska and Finland, while Paul Jr. decides to come back.

Sr. designs a bike for the masses, then promotes his new book on TV.

Paul Sr. tries to make amends, inviting Jr. and Mikey to his house.

Paul Sr. calls Jr. in as a consultant while he's out promoting his book.

The guys head to Howe Caverns to explore some caves and face their fears.

In an effort to continue their expansion, OCC partners up with Ducati.

The Teutuls visit Jon Gosselin after he commissions OCC to build a bike.

The Abu Dhabi police department hires OCC to build a bike.

The guys at OCC attempt to build the first natural-gas-powered chopper.

Life at OCC is forever changed now that Jr. and Mikey have been forced out.

Paul Sr. and his sons put their differences aside for a TV appearance.

The Teutul dynasty is crumbling as OCC builds an electric bike for Siemens.

The team struggles to build a custom sidecar that can carry a stretcher.

OCC builds a bike for pitcher Mark Buehrle of the Chicago White Sox.

Hollywood stars turn out to support a build for the Iraq Star Foundation.

Mikey is back from rehab and ready to make amends.

OCC takes on a build for the Christopher and Dana Reeve Foundation.

OCC struggles to build a hybrid chopper for Schneider Electric.

The OCC team works on a chopper for a new client, Gladiator GarageWorks.

OCC creates the first ever diesel-powered chopper for Monster Diesel.

OCC designs a NASCAR-inspired chopper for the Stewart-Haas racing team.

OCC puts a new set of tools to work building a custom chopper for Kobalt.