The gang come back from Nidge’s stag party in Prague to learn that Jimmy Byrne is back in town. His friends think Darren should kill him as soon as, but Darren’s not so sure. Tension mounts as Darren needs to make decisions not only about whether to follow through on his suspicions, but about what he should do about his feelings for childhood sweetheart Rosie.

As Darren grows closer to uncovering the truth, tensions and suspicions rise among the gang. Darren in particular faces difficult decisions about his feelings for Rosie, his future and his loyalties.

As Nidge and Trish’s wedding day arrives, gangwar is breaking out. John Boy and Hughie generate new plans and new recruits. Who will be with them?

Darren is worried about John Boy and Hughie’s volatility, not just for himself but for his sister Mary and the kids. Relations between John Boy and Darren come to a head. Darren decides that it is in everyone’s interest that he heads for London. Can he end the war before he leaves?

In debt to loan shark Fran, gang footsoldier Darren finds he has no choice other than to turn back to his former mentor, northside kingpin John Boy Power. Under pressure from the cops and doing way too much cocaine, John Boy is becoming paranoid and erratic. John Boy agrees to take on Darren’s debt in return for absolute loyalty – the deal with the Devil done, Darren is back on the team...

Disaster strikes the gang as a drug mixing factory is busted by the gardai. John Boy blames Stumpy who he believes sold them out. Darren, desperate to get out of the game, robs an ATM machine and makes a downpayment to John Boy against the debt he owes. John Boy, however, wants Stumpy taken care of and he wants Darren to be the one to deal with it.