Tammy II crashes a woodworking awards dinner that Ron, Diane and Leslie are attending; Jerry fails to invite some of his friends to his holiday party.
Jess avoids her feelings for Nick by taking care of her dad in Portland. While attending a work party with Reagan, Nick panics that they really don't know each other.
Bonnie and Christy go to great lengths to help a sick friend; Violet struggles with the realities of pregnancy.
McGee's personal life and professional life intersect when a dad from his children's school is linked to a break-in at a government storage bunker.
Lilly and the team are looking into the case of a woman named Darcy Curtis who was thought to have committed suicide by jumping off a cruise ship in 1966, until her body is discovered in the decommissioned ship's engine room.