The BAU profiles a serial killer who takes families hostage and lives with them as a father figure during what is supposed to be their family vacations.
An unexpected announcement at Gaby's engagement party; a dead body in a home on Wisteria Lane; Susan makes a choice between Ian and Mike.
Zoe enlists the Lightman Group to defend a star college football player accused of statutory rape. Meanwhile, Foster and Loker travel to a religious compound to find out whether it's actually a nefarious cult.
Evidence found in photos at a crime scene on the Brooklyn Bridge send Mac and Jo to San Francisco in search of a missing teenage girl. Peter Horton Guest Stars. (TV-14 L, V)
A CSI goes down in the line of duty when a kidnapping investigation goes awry.
