Team Scorpion goes undercover on a cruise ship to locate and disable deadly stolen rockets. Meanwhile, as Valentine’s Day approaches, Toby and Happy help Ralph, who is in the throes…

The team delves into the surprisingly cutthroat world of academics in a case involving a graduate student at a natural history museum.

The BAU hunts a stalker in San Diego who is targeting college students. Meanwhile, the team comes under Strauss’ scrutiny in the wake of the loss of Prentiss.