Booted from the hoosegow just days before the eagerly anticipated guards-versus-inmates ball hockey championship, Ricky (Rob Wells), Julian (John Paul Tremblay), and Bubbles (Mike Smith) hatch a plan to pull off the biggest heist of their criminal careers as Sunnyvale Trailer Park's most incompetent criminals make their way to the big screen. Christened "The Big Dirty," the trio's ambitious plan to steal large quantities of untraceable change soon hits a hitch when sidetracked Ricky prepares to make the ultimate commitment to longtime girlfriend Lucy and Julian crosses her new boss with disastrous results. It seems that in addition to having her bust size upgraded while the trio was incarcerated, Lucy also landed a job working at the nearby gentleman's club. When Julian goes to the club and falls for shapely dancer Wanda, temperamental proprietor Sonny quickly loses his cool. With the day of the Big Dirty fast approaching, the boys do their best to train hair-brained criminal assistants Cory and Trevor in the fine art of the heist. Of course, anyone who knows the Trailer Park Boys knows well that even their most foolproof plans have a way of springing a leak, and somewhere between the helicopter chase, the shoot-out, and the booze-soaked game of Sunnyvale Chicken waged against trailer park supervisor Mr. Lahey and his cheeseburger-chomping assistant, Randy, everything seems to just fall apart.