Two crashers sneak into a rehearsal for a wedding in the first half. In the second half, a birthday party goes crazy as they perform stunts such as trying to get guests to answer what a "birthday suit" is.
The first event features the crashers busting a cheerleading event. In the second, they sneak into a high school reunion. There, they attempt crazy stunts such as convincing "classmates" they had a crush on them, bringing back old dance hits and more.
The teams go to a salsa competition and have a "dance" off. They later raid a police car
The teams go on a ski test which tests all their abilities. They crash a wedding.
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