Jess invents a male alter ego, "Jeff Day" in order to buy a new car from a sexist salesman, but her plan backfires when both Nick and Sam arrive at the dealership pretending to be him. Meanwhile, Schmidt and Cece panic when Winston decides to bring his new prankster girlfriend, Rhonda as his plus one to their wedding.

After being emasculated in front of Cece, Schmidt insists on a manly bachelor party weekend in Vegas, but the road trip goes awry when the guys end up at a desert biker bar and he must put his newfound bravado to the test.