Garcia questions her role on the BAU team when she travels with them to Alaska for a case and sees more than she bargained for.
Seth pulls off a magnanimous gesture for Summer, then blows it. Lindsay and Ryan become physics lab partners and share some romantic chemistry. Embattled Caleb names Julie as Newport Group's CE-uh-O.
While stalking a recently released convict who may kill again, Dexter has to deal with the latest crime of the Ice Truck Killer, a chopped up hooker in a pro-hockey ice rink.
The ABC's of Love. When Alex wants to spend time with her ex, Seth says "X" must make room for "I" and "U." But there's something Seth doesn't know. Julie has a makeover idea for the Newport Group.
The Ice Truck Killer is finally identified, but something about the suspect doesn't sit right with Dexter.
