Paul Teutul Sr. and his sons, Paul Jr. and Mikey are back along with old and new faces, as Orange County Choppers expands to meet the demand for the sickest custom motorcycles around. Follow this creative, yet explosive team as they battle tight deadlines (and each other!) to come up with innovative ways to take motorcycle design and fabrication to the next level.

Inspiration for the OCC crew's latest chopper comes after a visit to Miller Electric, leading makers of welding equipment. Paul Jr. decides to incorporate a welder's mask into the gas tank and fabricate a serpentine set of exhaust pipes with Vinnie's able assistance. Paul Sr. meanwhile is fuming about the state of the work shop and when Vinnie leaves after getting word that his wife has gone into labour, Paulie is left to face Senior's wrath all by himself.

Paul Jr. and the boys hit the hardwood for a game of hoops against the guys from OCC Ironworks for a bit of relaxation before getting back to business. Back in the shop, Paul Sr. vents his frustration at Vinnie for leaving the shop in disarray and nearly sends him home for the day. However, once Senior sees the Miller Bike's patriotic paint job and the outrageous tow-behind welder, all is forgiven.