A man seeks revenge on an evil magician who placed a curse on him.

An architect witnesses a brutal murder in a small Texas town.

A group of varied misfits (including a former prostitute/stripper and a bumbler who can't see more than 6 inches in front of his face) enter a school to become flight attendants. Somehow, the group makes it through to the final test: a cross-country flight.

The hilarity begins when professor Sherman Klump finds romance with fellow DNA specialist, Denise Gaines, and discovers a brilliant formula that reverses aging. But Sherman's thin and obnoxious alter ego, Buddy Love, wants out...and a big piece of the action. And when Buddy gets loose, things get seriously nutty.

A chemical engineer, who recently moved to town, struggles to find a way to kill a deadly new variant of Cryptosporidium that has infiltrated the town's water supply, causing people who drink it to die of thirst.

The nerds are now in control of the university, as a result of Lewis Skolnick and the rest's actions in the two previous movies. A new generation of sportsmen arrive, however, determined on winning the school back. The principle, himself an ex-nerd fighter, helps them, and the nerds return to suppression. Harold Skolnick needs help from his uncle Lewis, the hero of the first two movies. Lewis, however, are not too proud of his nerd past, and won't reveal any of it, much less help his nephew. However, his wife makes him change his mind, and with help from his friends from the first two movies, they start the fight to win the school back, using classic nerd tricks.

After the death of a high school track star during a race, a mysterious killer in a fencing mask begins murdering her friends and teachers.

When a happily married family man, who would never consider an affair, meets a beautiful woman in red, he is totally infatuated and desperate to make her acquaintance. However, as he tries out various schemes to sneak out to meet her, he realizes that adultery is not quite as easy as it looks.

Ed Okin used to have a boring life. He used to have trouble getting to sleep. Then one night, he met Diana. Now, Ed's having trouble staying alive.

A brother and sister get caught up in the drug scene in their local high school, with tragic results.