New CIA agent Annie Walker is still forced to work on low-key cases until she is tipped off that a IRA cell operates in America.

Actor Steve Carell; actress Selena Gomez; Sheryl Crow performs.

Louie endures a number of typical airline problems traveling to Birmingham for a gig. After the show, he meets an intense fan and her intimidating brother at a local diner, and a sheriff who just wants a little appreciation.

In the aftermath of the disastrous homecoming dance, the girls try to sort out the devastation that is left behind. Parents, boyfriends (secret ones, possible ones and current ones), siblings and friends are all in flux, and if the little liars don't act fast, the situation could go from bad to worse. And to top it off, the girls are sitting on some killer information about Toby that some people would die to get their hands on. Meanwhile, "A" isn't the only one sending Aria text messages as tensions rise in the Montgomery household.

Tonight's guests are actress America Ferrera, biologist Dan Riskin, and comic Fred MacAulay.

Neal goes undercover as a political "fixer" in order to bring down a corrupt politician. Meanwhile, he also begins to suspect that Peter is investigating the plane explosion behind his back.