The hospital takes part in a nationwide civil defense drill, and the heightened atmosphere escalates conflicts among the staff. A former study participant reveals she’s pregnant and wants to know…

After a shocking attack leaves the pack reeling, Scott sets out to recruit reinforcements.

Lisbon accepts Jane’s surprise marriage proposal, but a killer’s quest for revenge may cost them the happy ending they’ve worked so hard to achieve.

A murder investigation becomes personal for Lisbon when she learns that her underachieving younger brother, Jimmy, is being sought as a key witness.

The team travels to Fort Lauderdale during spring break to find a serial killer who is targeting co-eds on vacation.