Rachel and Kurt redouble their efforts to recruit new members to New Directions after new rules are announced for the Show Choir Invitational. Sue enacts an elaborate plan to try reunite Kurt and Blaine. Will and Rachel have a much needed heart-to-heart.

Brittany and Santana plan their wedding. The Gleeks weekly assignment is the music of Burt Bacharach, and reigning diva Mercedes is recruited to act as a mentor for the new singers. Brittany learns a shocking family secret.