With his retirement from the CIA imminent, Luke prepares for his next adventure, but revelations at home and an urgent matter at work upend his plans.

Forced to team up in order to take down Boro, Luke and Emma realize their newly strained relationship is only the start of their problems.

The team goes from averting an international crisis to seeking sensitive intel in Moldova, where Emma offers to lure a target when complications arise.

Amid a devastating family emergency, Luke finds the lines of his double life becoming blurry as he deals with a distracted Emma and a demanding Boro.

While closing in on Boro, Luke and Emma juggle relationship drama and a highly delicate situation. A life-or-death matter forces Roo to find a release.

With the clock ticking, Luke and Emma make tough choices to finish the mission and stay alive. A big day for the Brunner family spirals out of control.

Barry hitches a ride to the final frontier. As an operative's cover story begins to crumble, Luke and Emma seek help from an unexpected ally.

Emma and Luke catch a buzz in a deep-sea submersible. Back on land, bullets and breadsticks fly in a confrontation at a pizza joint.

As the clock ticks down to zero hour, Luke and the crew must break into a top-secret facility before their adversary turns off the lights — for good.