In Christmastime Miami, heartbroken divorcée Giorgio invites himself to stay at his best friend Mario's — unaware that the latter is having an affair with his ex-wife — and ends up pursued by Mario's barely-of-age daughter; nosy and out-of-touch Ranuccio crashes his son's sex-themed holidays before ending up in a series of mishaps with Giorgio.
Van Wilder has been attending college for far too many years and is scared to graduate, but Van’s father eventually realizes what is going on. When he stops paying his son's tuition fees, Van must come up with the money if he wants to stay in college, so he and his friends come up with a great fund-raising idea – throwing parties. However, when the college magazine finds out and reporter, Gwen is sent to do a story on Van Wilder, things get a little complicated.
Employees at a Bennigan's-like restaurant (called, creatively enough, Shenanigan's), kill time before their real lives get started. But while they wait, they'll have to deal with picky customers who want their steak cooked to order and enthusiastic managers who want to build the perfect wait staff. Luckily, these employees have effective revenge tactics.
To save his crumbling and rapidly-depopulating rural town, its mayor fakes a gruesome murder to attract media attention. His plan initially succeeds, but soon the situation will spiral out of control.
A committed environmentalist whose hyperfixation with everything that's wrong with the world is taking a toll on his marriage tries a pill that reduces human brain capacity from the usual 20% to a mere 2%.
In Black Death era Tuscany, as in the Decameron, ten young Florentines take refuge from the plague. But instead of telling stories, they have lusty adventures, bawdy exchanges, romance, swordplay, randy nuns, Saracen pirates, and a sexy cow.
At a high-school party, four friends find that losing their collective virginity isn't as easy as they had thought. But they still believe that they need to do so before college. To motivate themselves, they enter a pact to all "score" by their senior prom.
With high school a distant memory, Jim and Michelle are getting married — and in a hurry, since Jim's grandmother is sick and wants to see him walk down the aisle — prompting Stifler to throw the ultimate bachelor party. And Jim's dad is reliable as ever, doling out advice no one wants to hear.
Jason Kelly is one week away from marrying his boss's uber-controlling daughter, putting him on the fast track for a partnership at the law firm. However, when the straight-laced Jason is tricked into driving his foul-mouthed grandfather, Dick, to Daytona for spring break, his pending nuptials are suddenly in jeopardy. Between riotous frat parties, bar fights, and an epic night of karaoke, Dick is on a quest to live his life to the fullest and bring Jason along for the ride.
Erik, Ryan, and Cooze start college and pledge the Beta House fraternity, presided over by none other than legendary Dwight Stifler. But chaos ensues when a fraternity of geeks threatens to stop the debauchery and the Betas have to make a stand for their right to party.