S04 Episode 1

The Build is On

Senior proposes that he and Junior combine forces to build a bike for charity, but Junior is unsure how to respond. But when Rick's wedding brings the two together, Junior gets the reassurance he needs to make a decision once and for all.

1 h 0 mins · Mon, 3 Sep 2012

S04 Episode 2

Back in Time

Senior and Junior brainstorm bike styles for their upcoming collaboration and decide to recreate the first bike they ever built together. Then PJD unveils the Geico Armed Forces tribute bike and OCC reveals the Cafe bike at the opening of the OCC Cafe.

1 h 0 mins · Mon, 10 Sep 2012

S04 Episode 3

Common Ground

Senior and Junior get to work on their bike build, which reaps surprising results as the two bond over old memories. Meanwhile, PJD starts a trike for Loopster while OCC builds a bike to benefit Senior's favorite charity.

1 h 0 mins · Mon, 17 Sep 2012

S04 Episode 4

Now or Never

Senior and Junior bond during their bike build; OCC begins working on a bike for Wildgame Innovations; PJD reveals a five-wheeled trike for Loopster.

1 h 0 mins · Mon, 24 Sep 2012

S04 Episode 5

Uncharted Territory

PJD begins a build for QUBX while OCC unveils a bike for Wildgame Innovations; father and son continue their collaboration.

1 h 0 mins · Mon, 1 Oct 2012

S04 Episode 6

Junior's Surprise

OCC begins a build for the Sturgis Motorcycle Rally; PJD unveils a bike that was built for a technology company; and Senior and Junior complete their bike build.

1 h 0 mins · Mon, 8 Oct 2012

S04 Episode 7

New Venture

Senior receives a stern, on-air lecture from a late night celebrity, Junior launches a new business venture and Senior visits PJD for the first time ever. Then at Sturgis, Senior rides side by side with a bike industry icon.

1 h 0 mins · Mon, 15 Oct 2012

S04 Episode 8

Full Circle

Junior and Senior discuss potential future business collaborations; PJD finishes a bike for RoadLoK, and OCC begins a super-bike build.

1 h 0 mins · Mon, 22 Oct 2012

S04 Episode 9

A New Company

Senior and Junior start brainstorming the production bike, but the road is rocky from the start. First, the two bump heads when discussing design workflow. Then, when Junior leaves town, Senior hijacks control of the project.

1 h 0 mins · Mon, 29 Oct 2012

S04 Episode 10

Junior Frustration

Senior makes business decisions without Junior's approval; PJD and OCC unveil projects.

1 h 0 mins · Mon, 5 Nov 2012

S04 Episode 11

Old Wounds

Junior and Senior disagree on the production bike design process.

1 h 0 mins · Mon, 12 Nov 2012

S04 Episode 12

Troubled Waters

When hurricane Sandy hits, the PJD crew rushes off to rescue the 9/11 Memorial bike. Progress on the production bike stalls out when Sr. and Jr. disagree on a plan of action. Sr. and Vinnie finally face off about their past differences after five years.

1 h 0 mins · Mon, 19 Nov 2012

S04 Episode 13

Impasse

PJD's 911 Memorial Bike is in more hot water than they thought. The pranks leading up to Chopper Live rev up and Sr. and Jr. hit a snag when the production bike discussions open old wounds.

1 h 0 mins · Mon, 26 Nov 2012

S04 Episode 14

The Last Build

In the series finale, the crews are under pressure to finish the 911, GAF and Venetian bikes. Cody goes after OCC with a revengeful prank as Chopper Live draws near. Sr and Jr find common ground in their relationship but are at odds over the new company.

1 h 0 mins · Mon, 3 Dec 2012

S04 Episode 15

The End

Senior, Junior and Mikey make a lasting impression by donating the TEUTUL Bike. Senior pulls one last prank and the threesome takes a raucous ride through the most dramatic and defining moments of American Chopper.

1 h 0 mins · Mon, 17 Dec 2012

S04 Episode 16

Family Reunion

This is the final episode of the series. Mike Teutal appears in this episode and reunites with his father.

1 h 0 mins · Mon, 17 Dec 2012

Season 4

American Chopper: Senior vs. Junior

Where to Watch

Season 4 Episodes

More Seasons of American Chopper: Senior vs. Junior