It's been several months since the team took down Henry in Hong Kong and change is afoot. Auggie (Christopher Gorham) is back at the DPD, Arthur (Peter Gallagher) is offered a job in the private sector working for McQuaid Security and Joan (Kari Matchett) is returning from maternity leave to find that she's been passed over for the job of DCS in favour of Calder (Hill Harper). And after mysteriously going off the grid for months, Annie has resurfaced, anxious to get back to work at the CIA and harbouring a secret that could jeopardise everything. Sent to Chicago to investigate a purported terror plot, she soon discovers that the threat is very real and much greater than anyone has anticipated. As a result, Annie finds herself swept into an international mission that will take her from Venezuela to Argentina to France and many points in between. Along the way, she'll continue to cross paths with Arthur's new boss, Ryan McQuaid (Nic Bishop), a charismatic Navy SEAL turned - CEO with his own ties to the terrorist - and his own secrets.