20 years since their first adventure, Lloyd and Harry go on a road trip to find Harry's newly discovered daughter, who was given up for adoption.

After taking his dying father's advice, Hal dates only the embodiments of female physical perfection. But that all changes after Hal has an unexpected run-in with self-help guru Tony Robbins. Intrigued by Hal's shallowness, Robbins hypnotizes him into seeing the beauty that exists even in the least physically appealing women. Hal soon falls for Rosemary, but he doesn't realize that his gorgeous girlfriend is actually a 300-pound-not-so-hottie.

Rhode Island State Trooper Charlie Baileygates has a multiple personality disorder. One personality is crazy and aggressive, while the other is more friendly and laid back. Both of these personalities fall in love with the same woman named Irene after Charlie loses his medication.

For Ted, prom night went about as bad as it’s possible for any night to go. Thirteen years later, he finally gets another chance with his old prom date, only to run up against other suitors including the sleazy detective he hired to find her.