Barney pursues Quinn, even after learning she's a stripper; Marshall and Lily show Robin what life is like in the suburbs; Ted tries to figure out what to do with Robin's room.
Mickey works with FBI agent Van Miller to gather incriminating evidence against Sean Walker, while Ray tries to get Tommy out of a sticky situation.
The kids take Sikowitz to the theatre to celebrate his 10-year teaching anniversary, but the play's subject matter sends Sikowitz into a deep depression. Tori must cheer him up.
An explosion in the home of a Navy SEAL forces the team to investigate; Vance continues his physical therapy.
Levon wants some alone time with Melanie, and Charlie and Marcy have money issues.
