Penny and Leonard organize a paintball game, which results in mayhem when Sheldon becomes jealous of Amy. Raj catches Anu with her ex-boyfriend. Stuart doesn't want to move in with Denise.

Cast: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg, Kunal Nayyar, Mayim Bialik, Melissa Rauch, Kevin Sussman, Hira Ambrosino, Rati Gupta, Lauren Lapkus, Joshua Malina