It's just days after the Folkapalooza concert and having saved the world, Twenty Major is looking forward to some R&R&G (Rest & Relaxation & Guinness) - but little does he know that someone from his murky past is about to surface...Notorious Dublin gangster Tony Furriskey is calling in his marker. A while ago, he helped Twenty and Jimmy the Bollix out of a hole and the time has come for them to repay the favour...or end up swimming with the Dublin Bay prawns. Twenty and Jimmy must follow a young man and his pals to Barcelona, where the stag weekend of Tony's future son-in-law is taking place. Their job is to infiltrate the party and make sure, one way or another, that the wedding doesn't happen...In the city of Gaudi and Picasso, Twenty, Jimmy, Stinking Pete and Dirty Dave are more gaudy and pickarse as they try to enjoy the cheap mojitos and Mediterranean sun, while making sure the job gets done. But Twenty's Barcelona past is about to catch up with him.