Paul Teutul Sr. and his sons, Paul Jr. and Mikey are back, as the American Chopper workshop creates more amazing bikes for some famous people and sparks fly as the deadlines loom.

Cycling Chopper 1 and 2

The guys visit Nike headquarters in search of inspiration for their next project, a chopper tribute to seven-time Tour de France champion and cancer survivor Lance Armstrong and his Livestrong Foundation. With their deadline looming, the team struggles to put the finishing touches in time to get the chopper to Justin and Nub Grafix for paint. But when the bike returns, engine problems linger, putting the pressure on Junior to fix the mystery problem before they present the gift to Lance on The Tonight Show.

Police Bike 1 and 2

The guys pay a visit to the New York State Police Academy, where they learn first hand just how tough training is when Keith ends up on the wrong side of the law. They have been commissioned to produce a bike honouring the men and women of law enforcement, but with delays beginning to pile up, the crew battle to fix the bike in time for a benefit for New York police officers lost on 9/11.

Biker Legend Chopper 1 and 2

A trip down memory lane while at Sturgis inspires Senior to build a tribute to biker legend and artist David Mann. But throughout the build Senior struggles with problems, from Paulie showing up late to work to never-ending fights with Mike. But then, through a tragic phone call from Easyriders magazine, Senior learns that David Mann has passed away, changing the bike from a tribute to Mann's work to a memorial to his life.

Bloopers Special

Hilarious and embarrassing moments a-plenty as the bits you never saw on TV are revealed!