OCC builds a bike for Veterans Airlift Command and PJD finishes a bike for One Call Concepts. After his mother's death, Senior is more determined than ever to reconcile with Mikey and Junior, inviting Mikey to join him at a painting class.

Senior deals with the death of his mother and is hurt then he does not hear from Junior or Mikey. Then, while PJD starts a build for One Call Concepts, OCC unveils a gold bike for Donald Trump.

It's wedding bell bliss as Paul Jr. prepares to head down the aisle while PJD becomes swamped with e-mails from people interested in his bikes. But will Junior regret inviting his dad to the festivities?

Tensions are high at PJD as Odie back talks Junior. Junior fires Odie who then turns to Senior for counsel, and hopefully, a job. PJD pulls off a double-unveil for Universal Property Insurance while OCC unveils a bike to an enthusiastic crowd at Bic.

Junior and Senior disagree on the production bike design process.

A bike for St. Jude Hospital is unveiled; foreclosure rumors about OCC spread; an employee may lose his job at PJD.

After receiving a puzzling text from Mikey, Senior calls Junior to make amends. PJD starts a build for Newmont Mining while OCC unveils a bike for CIMA Green. Then, Junior asks Senior for a face-to-face meeting, sans cameras.

In the aftermath Chopper Live, Junior celebrates his win while fulfilling an order for an overseas client, while Senior focuses on the future with a big build and an even bigger opportunity: a spot on Celebrity Apprentice.

Junior lands the biggest job of his career when he is asked to build a bike inspired by the restoration of Ground Zero in NYC. Senior secures a build for a wealthy foreigner and rumors fly at both shops over Rick's assumed discontent at OCC.

After weeks of silence, Junior calls Senior to give his condolences on Helen's passing. Then PJD starts a charity build for the March of Dimes while OCC finishes a two-bike build for John Christner Trucking.

Rick's news? He's ENGAGED! Meanwhile, Junior decides to revamp the Black Widow Bike he recently reclaimed from Senior, and OCC works on a two-bike build for John Christner Trucking.

OCC finishes the Italian sports car bike and PJD unveils the Skil Bike. Then, Mikey leaves the show once and for all, and Junior goes to OCC to confront Senior face to face.

Senior, Jason, Jim and Steve travel to Malaysia, where they not only unveil their latest bike, but also encounter wildlife, swim under waterfalls and barter at the central market.

OCC starts a build for WyoTech, a school for budding mechanics, while PJD continues work on their Gears of War 3 trike. Then, WyoTech students visit OCC to help out, while the understaffed PJD crew wonders how to find talented mechanics.

OCC builds a money-themed bike for longtime client Alan Brownfeld, while Junior and Mikey head to Louisiana to consult on a custom gun design with Will Hayden of Red Jacket Firearms and Sons of Guns. Then Senior announces his reconciliation with estranged son Dan, and Junior and PJD unveil their Jared Allen charity bike to a roaring crowd.

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.

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.

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.

OCC starts a 1970's themed build for MyPillow while PJD puts the finishing touches on a bike for Newmont Mining. Then, there is promise that all the family drama could finally end as Senior and Junior agree to meet in person.

OCC starts a build that will be unveiled to the prime minister of Malaysia, while PJD finishes a pimped-out bike for baseball player Aaron Rowand. And Mikey drops an unexpected bomb when he considers quitting the show.

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.

Junior and Vinnie venture into "enemy territory" to pick up the Black Widow Bike, and Senior express his frustration that he hasn't seen Mikey post-settlement. PJD assembles the FIST Bike while OCC creates the Power Probe Bike.

In this special episode, Junior seeks to take his company in an entirely new direction by making a custom kit for a muscle car that will be unveiled at Daytona Bike Week.

Post-settlement, Senior tries to commission a painting from Mikey, but gets mixed signals from his son. OCC starts a build for Beck's, a family-owned hybrid-seed company that wants to build a reverse trike, while PJD works on a modern design for Cepheid, a medical diagnostics company.

PJD starts a build for Jared Allen's charity while OCC works on a custom build for Supernatural Cymbals. Junior meets with lawyers to stay on top of a new lawsuit from his Dad. Mikey gets a taste of the limelight at his successful art gallery opening.

OCC builds a ramp to launch a dummy dressed as Junior over a creek. Meanwhile, Junior and his team begin fabricating their very first chopper. Junior realizes that he needs help in the paint department so he recruits his old friend Nubs to the team.

After such a big battle, you'd think the show would be done. But it's back, in this season premiere of Senior vs. Junior. Senior is well-rooted for battle, but Junior plans on destroying his dad's business regardless; by building a rival shop just around the corner. Of course Mikey will be there along with an old friend Vinnie.

The pressure is on at OCC and Paul Jr. Designs as both shops race to complete their bike builds in time for the famous Sturgis bike rally.

OCC gets a bike build for the Chicago Blackhawks to celebrate wining the Stanley Cup. However, a miscommunication leads to the crew scrapping the build and starting over from scratch. Meanwhile, Senior rushes his dog to the emergency room.

Senior and Junior finally sit down to settle the two-year lawsuit that has torn their family apart. Amidst the drama, PJD starts a new bike for FIST Enterprises while OCC builds a rock-and-roll-inspired bike for Hard Rock.

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.

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

Senior visits Mikey's gallery and is affected by paintings depicting their strained relationship. While both shops work on respective builds, Junior learns he has won his appeal of Senior's lawsuit, and Senior decides to make Junior a settlement offer.

The OCC crew heads up to Alaska to meet up with the Hillstrand brothers from Deadliest Catch. Then the Deadliest Catch Bike is built and unveiled at the CatchCon fan convention in Seattle.

OCC and PJD rush to finish their Cadillac bikes for the build-off, then race CTS-Vs at the Monticello Raceway. And at long last, Junior and Senior face each other when they unveil their bikes at General Motors.

PJD starts a build for Skil Tools while OCC begins a bike based on an Italian sports car. Then Junior makes a huge decision that could finally end his estrangement from Senior once and for all.

Paul Jr and team are hard at work trying to get the new shop in order. Senior is in total disbelief that Junior will be able to compete with OCC. Also Senior get's angry when Junior starts going after OCC's vendors.

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.