The backstreet boys guest star and help Justin propose to Candace. Danny has trouble with the fact that Justin is moving out after their engagement. The gang tries to get Candace's grandmother's engagement ring back from her ex boyfriend Trent.

Cast: Chris D'Elia, Brent Morin, Bianca Kajlich, Bridgit Mendler, Ron Funches, David Fynn, Rick Glassman, Whitney Cummings, Adam Hagenbuch, Rory Scovel, Nick Carter, Howie Dorough, Brian Littrell, A.J. McLean, Kevin Scott Richardson