When everyone but Calvin accepts Dave and Gemma’s invitation to their housewarming party, Dave decides he’s finally had enough of Calvin’s refusal to welcome him to town.

Through a series of flashbacks, Sullivan and Natasha’s past is revealed. Meanwhile, Ben and Bailey have a discussion with Pru’s grandparents, and the crew responds to a fire at a…

Bow takes Diane to get her hair done at the salon and wants to spend this time together as a bonding opportunity, but Diane isn’t having it. Diane is conflicted…

The NCIS team investigates an unidentified aircraft that flies into U.S. airspace and crashes into a Navy plane. Also, Deeks and Kensi begin to prepare for their foster inspection.