Mo is determined to make Blair and Tiff’s marriage happen, for better or worse. Keith tries to impede the SEC’s sting operation by any means possible.

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.

Mo takes Blair on his bachelor party, while Dawn realizes she’s a very important guest at Tiff’s bachelorette party. Keith faces a loaded decision.

In response to the spate of violence and unrest in their area, Westerburg decides to stage an “active shooter” training drill in which students are placed on lockdown while the…

Veronica, fed up with JD, goes on a double date with Heather Duke and two handsome football players; the school musical auditions commence and Heather Chandler meets unexpected competition.

Veronica schools JD on how to be a proper boyfriend; Heather Duke and Heather Chandler spar over control of the hearts and minds of the Westerburg student body.

Tiger and Wolf decide it’s time for Dr. Kronish to die. Josh reluctantly agrees to help—but when he realizes he can’t go through with it, he finds himself caught in…