After a series of suspicious murders occur, Prentiss suspects her old Interpol nemesis, making her fear for the safety of her BAU team as he closes in on her.
Prentiss is ready to confront her nemesis, Ian Doyle, once and for all. Meanwhile, the BAU calls upon JJ to help them find Prentiss and capture Doyle before it's too late.
As soon as they arrive in Ireland, the bikers encounter a few obstacles, as Jimmy O'Phelan is determined to stand in their way. Despite this, the two clubs celebrate their reunion.
Still in Ireland, the club embarks on a protection run, the likes of which they've never seen before.
The Sons are forced to call upon their connections in the adult film industry to make a deal to buy guns. Plus, Tara is back to help Gemma, and the club gets news about Cameron.
