Terrence Flack

Cristina, back from her honeymoon trip, searches in vain for Burke; Meredith, Cristina, Izzie and Alex spend their first day as residents with their own groups of interns.

Agent Hotchner revisits the first case he worked at the BAU, when details come forth that one of the deadliest serial killers in New England's history has struck again after a 10-year hiatus.

Kelly is chosen to play a nun in a commercial, and a morality clause in her contract requires her to make a sacrifice. Meanwhile, Al is chosen to be Officer Dan's partner on Cops.