What was once a family business is now a family feud. All bets are off for what new fireworks await in American Chopper: Senior vs. Junior. Paul Senior builds world famous custom bikes at Orange County Choopers while Paul Junior operates his competing shop, Paul Jr. Designs, just a stone's throw down the road, with brother Mikey and former OCC employees firmly by his side. Will the family be made whole again? And what new out of this world build assignments will they take on to stretch their teams creatively and mechanically?