When Owen and McQuigg learn heartbreaking news about family members, the team go on high alert as they soon discover that nowhere is safe.
Conor Devlin plots revenge and returns to his home country of Ireland, as the team unknowingly becomes a pawn in his plans.
The team goes to Ireland, but their plane is highjacked. Conor Devlin continues to seek revenge as someone from Alex's past comes back into her life.