When Bubba and his team are hired to build a one-of-a-kind Bubba-Q for the Simeone Automotive Foundation, things quickly hit a snag. Bubba's brother, Fobo, promises the client that this custom cooker will be drivable, so Bubba must figure out a way to pack gasoline, a blazing firebox and a driver all into the same barbecue smoker. To make matters worse, Bubba's truck is on its last legs and unexpectedly breaks down while the guys are picking up meat for the big event, leaving them stranded in South Philly.
When Bubba and the team are hired by TNT Amusements to build a custom Bubba-Q out of a real pinball machine, things get a little heated. The team must find a way to build a smoker that will cook the four phases of barbecue but still have some of the functions of a pinball machine. When a test puts them back to square one, the team must figure out a way to get this pinball barbecue finished in time for the big event.
Things get a little messy for Bubba and his brother Fobo when they show up to a client meeting at a local gun range in North Philly. The team's buttoned-up business manager, Lonni, calls the guys out for looking like slobs so they reluctantly agree to take her advice and upgrade to a more professional image. Later, a critical test for the crew's gun-themed Bubba-Q backfires when Fobo gets his bell rung by a supercharged potato cannon.
It's music to Bubba's ears when Lonni sets the team up with the Philadelphia Record Exchange. The guys are rearing to build this rockin' Bubba-Q from scratch, but things skip a beat when Fobo promises the client that the barbecue will cook 24 chickens at once! Then, Bubba hits a low note when his sister-in-law Arlene entrusts the crew with her very own jukebox to use for inspiration. And just when the team thinks they're in the clear, there's one final obstacle standing in the way.