Join New York natives Paul Teutul Sr. and son Paul Jr. of Orange County Choppers, creators of the world's most outrageous custom motorcycles, for the fifth series of the adventures of the American Chopper crew. Follow the day-to-day drama of this volatile father-and-son team as they battle impossible deadlines - and each other - to push motorcycle design and fabrication to new levels.

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Series five includes:

FANtasy Bike: Joseph McClendon and Bryan King

The Discovery Channel FANtasy Bike contest helps the dreams of two deserving fans come true with some very special custom jobs. Joseph McClendon has always been a lover of choppers and when he had to sell his hog to help pay for his mother's hospital bills, his mum made him promise he would build another chopper. Truck-driving, car customising Californian Bryan King wants his own chopper more than anything - the only small problem is he's in a wheelchair. The OCC crew work together to make Joseph and Bryan's FANtasies reality.

Senior's Vintage Project 1 and 2

Inspired by a trip to Europe, Senior starts collecting vintage bikes. When the guys try to restore an old classic, they run into some obstacles and need to call on the help of an expert. Senior has everyone working on this project - even Mikey pitches in - and then decides to build a chopper with a vintage feel as well! When the front end of the vintage chopper comes back from powder coat the wrong colour, the guys scramble to finish the bike on time, while Senior's vintage chopper is unveiled at a photo shoot for Barnett's magazine.

Wendy's Bike 1 and 2

The guys of OCC head to the Ohio headquarters of fast food company Wendy's to research their next build, a bike to be auctioned off to benefit the Dave Thomas Foundation for Adoption. An OCC first, the frame is built in-house, which proves to be a challenge for the guys. When the bike is sent to paint and powder coat, the guys head to Hunter Mountain for some fun on the slopes. Back in the shop, the crew works on finishing the bike in time, and then it's a smooth ride to the finish line, stopping off to show the bike at The Children's Home Of Poughkeepsie.

Sunoco Bike 1 and 2

OCC teams up with Sunoco and NASCAR driver Kyle Petty to build a bike that will benefit the Victory Junction Gang Camp. The guys head to North Carolina to meet Petty, tour the camp and spend time with some of the kids. Back in the shop they continue working on this latest chopper, but when the bike is sent to paint and powder coat, the Teutuls head to Lowe's Speedway to take turns around the track.

Bill Murray Bike 1 and 2

Hollywood actor Bill Murray asks the OCC crew to build him a chopper inspired by his "Caddyshack" character, Carl. While Jr. is busy building - with help from Mr Murray - Senior and Mikey practice their swings at Mikey's house in the midst of demolition work. After a journey to the links with Bill, and despite a small mishap with the paint job, the cool, custom-made Caddyshack chopper is auctioned off to benefit St. Vincent's Mobile Hospital.

OCC Roadshow

The crew get ready for another first - building a bike on stage in front of their fans. The pressure builds when they realise that they may not be up to the task. Technical difficulties and stage fright make Senior walk off stage. But it all comes good, and the bike is raffled off.

Make A Wish Bike Special

The holiday season is upon OCC again, but instead of a Christmas-themed dream machine, the guys honour one of their favourite charities, The Make-a-Wish Foundation. Senior, Junior and Mikey invade FAO Schwartz in search of the perfect gift for each kid - even Nub gets in on the fun when he has kids finger-paint the fenders and oil and gas tanks.

Behind-the-Scenes Special

Find out what goes on behind the scenes at OCC in this special episode. Mikey films the film crew and travels to LA to find out about the post-production work needed to make this one-of-a-kind show come together. Watch interviews with the producer, cameramen, editors, and, begrudgingly, the executive producer.