Senior's trip to Europe inspires him to start a collection of vintage bikes, whilst the guys run into obstacles as they restore an old classic. S3/Ep66
The final winner is revealed. A car accident left this fan paraplegic, so his dream custom-built trike bike will test the team's talents to the fullest. S3/Ep65
The guys are faced with one of OCC's most complex and challenging builds ever - a hybrid chopper for Schneider Electric. The rift in the family continues. S6/Ep22
OCC are building a trike for a client. Plus, Paul Sr learns that Mikey is in rehab and wonders if there is any hope of salvaging their strained relationship. S6/Ep19
The team build a bike for the Iraq Star Foundation. Kristy Swanson, Gary Sinise, Jon Voight and other Hollywood stars turn out to support the cause. S6/Ep18
The team attempt to make a bike for Mark Buehrle of the Chicago White Sox baseball team while Paul Jr works hard to get his new company off the ground. S6/Ep17
The OCC are asked to build a chopper for medical transport company Ornge. But they struggle to create a sidecar capable of carrying an ambulance-style stretcher. S6/Ep16
There's mayhem at the garage, but how are things working out for the respective members of the Teutul clan now that they've all gone their separate ways? S6/Ep15
Even though things are tense between Paul Sr and his sons they put their differences aside to make an appearance on the American programme 'Larry King Live'. S6/Ep14
The OCC attempt to build the first natural gas-powered chopper. And, as Paul Junior sets up his new company, Mikey starts to question his future. S6/Ep12
Jon Gosselin, of hit series Jon & Kate Plus 8, has asked the guys at OCC to build him a bike. So the team head to the Gosselin ranch for ideas. S6/Ep10
To continue their business expansion, OCC partners up with industry giant Ducati. Plus, they put their unique spin on one of these Italian bikes. S6/Ep9
The guys from OCC head to Howe Caverns to explore some caves. And Paul Jr continues to work as a consultant, plus focusing on his own projects outside the shop. S6/Ep8
To keep the Mountain Creek bike build running smoothly while he is out of the shop promoting his book, Paul Senior calls in Paul Junior as a consultant. S6/Ep7
Paul Sr tries to make amends with Paul Jr by inviting him, and Mikey, up to his house to work on a bike just for fun. But will his olive branch work? S6/Ep6
To mark the OCC's 10th anniversary, Paul Sr designs a bike for the masses. Plus, he gets invited to ring the bell at the New York Stock Exchange. S6/Ep5
Paul Sr takes a trip up to Alaska to research a bike, and ends up meeting Governor Sarah Palin. Then it's off to Finland in an attempt to bring OCC to Europe. S6/Ep4
The guys of OCC have their work cut out with two new projects, but both are put in jeopardy when Paul Sr and Paul Jr have a no-holds-barred argument. S6/Ep1
The crew heads to the farm to get ideas for their heavy-duty Dodge Ram build; but Sr and Jr soon lock horns. Can they settle their differences and work together? S5/Ep26
Paul Jr gets the green light to design and build a custom chopper honouring the Superbowl-winning NY Giants. OCC prepares for the grand opening of their new world HQ. S5/Ep15
OCC moves into their new world headquarters and takes on their first build in the new shop: a penguin-themed chopper for exterior insulation manufacturer, Dryvit Systems. S5/Ep14
OCC is singled out for an award. The crew scrambles to get more bikes built for the award showcase and the Teutuls head south for a reunion with Russ. S5/Ep13
OCC pumps it up on their latest custom creation for BSN. During fabrication Jr and Sr go head to head over missing tools, and the girls of BSN pop in to lend a hand. S5/Ep11
OCC pulls out all the stops with a new project for heating company Viega Corporation. But staff issues and multiple orders continue to slow the build. S5/Ep10
OCC tunes in and cranks it up as they build a custom bike for Klipsch Audio Technologies. But staff shortages have the team on a quest to hire fresh mechanics. S5/Ep9
OCC continues work on a hybrid for an outdoor lifestyle company. The Teutuls travel to Brazil and find themselves invited to the presidential palace. S5/Ep6
The OCC guys' next project is a custom chopper for an outdoor lifestyle company, which inspires them to venture out and test their survival skills. S5/Ep5
OCC marches forward with the Army National Guard Patriot Bike. With assembly looming, an eager Jason Pohl has the opportunity to advance his training. S5/Ep2
OCC locks and loads as they pay tribute to the troops with a custom bike for the Army National Guard. Then, Senior takes a walk down the aisle with Beth. S5/Ep1
Kobalt tools get the OCC crew to build them a custom chopper. And Paul Jr gathers the family together and makes a truly life changing announcement. S6/Ep26
The team design a NASCAR inspired chopper for the Stewart - Haas racing team while Paul Jr. pitches a new line of dog toys to a company based in Los Angeles. S6/Ep25
The guys work on the first ever diesel powered chopper. Jr is at the opening of the dog park, and Mikey performs his stand-up routine to a packed house. S6/Ep24
The guys work on a bike for Gladiator Garageworks. Mikey performs his comedy act live and Sr fights his emotions sharing news about a loved one. S6/Ep23
The guys are faced with one of OCC's most complex and challenging builds ever - a hybrid chopper for Schneider Electric. The rift in the family continues. S6/Ep22