A pair of friends embark on a mission to reunite their pal with the woman he was going to marry.

用窝囊废来形容罗杰（琼•海德 饰）一点不为过。生性懦弱的他，面对外表凶狠的人时，大气都不敢出一口。想请倾慕的邻家女孩（杰辛达•巴莱特 饰）出去吃饭，竟然因紧张而昏倒。总是在关键时刻莫名失败的他，决定改变自己的性格。做一个真正的男子汉。
经朋友介绍，罗杰来到一所秘密的，号称“懦夫救星”的学校，班主任P博士（鲍勃•松顿 饰）是一个强悍的老师。他的教学方法极端怪异，却收效甚佳。很快，罗杰找回了自信，与女孩的关系也有了进展。然而，罗杰没有想到，他与P博士竟爱上了同一个人。一场师生的竞争，一场荒诞的闹剧，正在上演。

Jackie Moon is the owner, promoter, coach, and star player of the Flint Michigan Tropics of the American Basketball Association (ABA), the worst team in the league. In 1976 before the ABA collapses, the NBA plans to merge with the best teams of the ABA at the end of the season. Only the top four teams will make the move and the worst teams will fold. If the Tropics want to make it to the NBA, Jackie Moon must rally his team and start winning.

Kindhearted Griffin Keyes is one of the best-loved caretakers at the Franklin Park Zoo, but he's more comfortable with the animals than with females of his own species as proven by his failed marriage proposal to the self-absorbed Stephanie several years ago. The animals have listened to Griffin pine over her for years and, after she reappears in his life, they decide to help Griffin rekindle the relationship and become the alpha male she wants him to be. They inadvertently reveal their secret ability to talk and, after Griffin's initial shock, teach him the rules of courtship, animal-style. Surprisingly, the animals' advice really works and Griffin is about to get everything he's ever dreamed of--or is he?

Eddie, the 40-year-old confirmed bachelor finally says "I do" to the beautiful and sexy Lila. But during their honeymoon in Mexico, the woman of his dreams turns out to be a total nightmare, and the guy who could never pull the trigger realizes he’s jumped the gun.

After an Ithaca College student films his one-night stand with a beautiful sorority girl, he discovers one of his friends has accidentally mailed the homemade sex tape to his girlfriend in Austin. In a frenzy, he must borrow a car and hit the road in a desperate bid to intercept the tape.

The Hangover crew heads to Thailand for Stu's wedding. After the disaster of a bachelor party in Las Vegas last year, Stu is playing it safe with a mellow pre-wedding brunch. However, nothing goes as planned and Bangkok is the perfect setting for another adventure with the rowdy group.

Three friends attempt to recapture their glory days by opening up a fraternity near their alma mater.