At Blair and Tiff's engagement party, Mo's feelings for Dawn begin to cloud his judgment. Wayne and Yassir get into serious trouble, while Keith takes a big step.

Casey Wilson, Danielle Schneider, Dannah Phirman, Elia Cantu, Greg Bryan, Horatio Sanz, Jason Michael Snow, Jayden Maddux, Jen Zaborowski, Julie Hagerty, Kadeem Hardison, Kim Cooper, Melissa Rauch, Melissa Stephens, Phil Reeves, Yassir Lester