John Ellison Conlee

Diane settles in as a new partner at Reddick, Boseman and Kolstad. Maia deals with fallout from the financial scandal, but picks up a new case with Lucca.

Michael returns to Kath but she and Colin begin to worry as the FBI fuels Michael's suspicions about their relationship. Elsewhere, Eileen is confined to bed rest for the duration of her pregnancy, and Tommy seeks Michael's assistance as Declan begins to focus his investigation on the Waterfront Project.

When a fertility lab technician is murdered, details regarding her secret personal life are revealed -- leading to several possible suspects. Also, the tables are turned when Watson is investigated by an NYPD detective.

The team hunts for a person who jeopardised a classified vaccine project, and Deeks must deal with his emotions as he returns to the field.

Jackie and Eddie decide to make one last purge of their stash; Zoey blames herself after a patient dies; Dr. Prince and Akalitus bond over lunch when she reveals something from her past.

Jo is determined to prove Kindred was behind the attack on Benny and April. Later, Piper experiences intense, confusing visions.