When Gloria hires a too-good-to-be-true male nanny, Jay and Manny are pretty much dead set against it. Frank is in town and feeling a bit lonely recently, so Phil and Jay take him out to help get his groove back. And, Mitch and Cam commission Pepper to plan their dream wedding, but Pepper might be dreaming a little too big.
Andy and Jack find themselves in a disagreement over spending decisions at the station. Meanwhile, the firefighters respond to a structure fire at a brand-new bed-and-breakfast, and Ryan calls Maya when he finds her brother in some trouble.
Peggy takes over as coach of the cheerleading squad, and switches the girls from elaborate dance routines to violent spectacle.
Susan calls off a wedding; Gaby moves forward with a wedding; a Wisteria Lane resident is suspected of murder.
An explosion sends a top-secret submarine to the bottom of the ocean with limited oxygen, a self-destruct function that's about to activate, and Walter, Cabe and Happy on board.