Randall and Rebecca embark on a road trip and reflect on their past.
When Raines' sister goes missing in Kosovo, he goes rogue to find her, putting his job and his life on the line. Also, Kellett and Forrester face further scrutiny from inside the Bureau.
New information leads Naomi to believe there is another alien in her midst; a visit from Cmdr. Steel prompts Dee and Zumbado to make an unexpected visit to the McDuffy home in the middle of the anniversary party.
When the students start participating in a new online trend that causes disruption to the school, the teachers band together to put an end to it; Mr. Johnson provides comforting life advice to Gregory; the teachers meet Jacob's boyfriend.
In the midst of a heat wave, Neil has a fling with Angelica, a prominent commercial actress. Tommy accidentally ruins the joy of Arpi's scratch-off lottery habit, but helps her by revealing a secret hobby of his own.
After an ICE agent is fatally shot at an ICE vs. DEA hockey game, the team attempts to find the shooter who they believe may also be targeting Congressman Curtis Grange, who was at the same game.
Lois thanks Lana for sticking up for Jonathan when he is taunted for getting football season canceled; Jordan's unexpected departure on the mayoral election day leaves Sarah rattled.
Conrad and The Raptor help out an old friend whose heart problems reveal a bigger issue than they anticipated. Bell confronts the Medical Board about the cases he's been investigating.
Bash saves a hostile man during his commute and gets some shocking news about his future.
Pam starts to lose control as Russ' new trial looms--facing money troubles, a relentless "Dateline" producer and difficulty caring for her sick mother. Askey realizes Pam isn't the star witness she thought. Joel makes a breakthrough.
Hawaii, 1984: As Lia prepares for her trial, she puts Ata in charge of her wrestling promotion and all the problems that come with it; Rocky begins to feel overshadowed by his partner: Dewey goes head-to-head with a new classmate.
The team gets called to Vermont after a married couple who grow illegal marijuana massacres their employees; Barnes begins to regret not taking any time off to bond with her new baby.
Recruits return to base camp for a final debrief with the DS, sharing stories from their life-changing experience on SAS selection.
The final four recruits face their greatest test: a petrifying helicopter insertion into enemy territory, where they must cover their tracks before retrieving a bag from a 100-metre-high cliff face.
Time is running out for Jac and she makes a fateful choice. Dominic is determined to help Ken as he remains left out with Ange and Josh. Lexy gives Henrik food for thought.
Conrad and Michelle meet in Florida and discover a connection that follows them back to their respective towns in Massachusetts; Michelle honors Conrad's memory while the police review their text exchanges leading up to his passing.
Assistant District Attorney Katie Rayburn is reluctantly enlisted to pursue possible charges against Michelle; Michelle is torn between a new friend and Conrad.
A teen's death by suicide unearths painful questions for his family and reveals a complicated, mostly virtual relationship with a young woman who may hold the answers.