Sam Murphy

The BAU search California's Angeles National Forest after a number of bodies mysteriously turn up in the mountain lakes there. Also, Rossi struggles with an agonizing decision regarding his ex-wife.

When Kovac's (former series star Goran Visnjic) brother visits from Croatia, Abby feels crowded in her own home. Meanwhile, Gates starts to experience the pressure of fatherhood after Sarah (recurring guest star Chloe Greenfield) decides to have a sleepover with her friends. And Pratt becomes upset when a new temporary emergency room chief is named. Recurring guest star Kari Matchett ("24") appears as Skye Wexler.

A hypnotist who uses her powers of persuasion to rob banks becomes the prime suspect in a murder investigation. (TV-14)

Brenda's checkered past comes to back to haunt her as she investigates a death linked to a pharmaceutical drug test.

Jonas, Mack and Grey have their hands full keeping a pop diva safe from harm while Bob and a Justice Department escort face extreme danger as they return a prisoner to his own country to face his execution.

Co-eds on Spring Break get more than they bargained for when they fall prey to a flesh-eating bacteria.