Love is in the air when Amy convinces Sheldon to join her, as well as Howard and Bernadette, for a romantic train trip to Napa Valley to celebrate Valentine's Day.
After a kidnapped petty officer escapes her captor, NCIS uncovers a connection to her missing husband. Also, Abby knits the NCIS newbies personalised gifts.
As members of the CSI team search for a cannibalistic killer, they realise they are pursuing more than one person.
Carver deals with the fallout of his arrest; Brett searches for closure with the baby she rescued; Capp weasels his way into the Firehouse 51 group chat.
Herrmann works on becoming a better man after Cindy's cancer journey; Kidd bonds with a homeless victim on a call; Kylie takes her firefighter exams; a harrowing call takes a toll on Brett.
