The stooges are small time actors traveling by train to an engagement. Along with their pet monkey, they manage to spoil the trip for quite a few of the other passengers including the conductor and a big movie star. Eventually their antics get out of hand and they are literally tossed off the train.

Set in the civil war, the stooges are spies for the north. They impersonate southern officers and infiltrate the enemy ranks to get valuable information. On the run when they are discovered, they hide in a cannon and are blown back to their northern headquarters.

The stooges are down and out. With a cop chasing them, they flee into an artists studio where they are mistaken for students. The cop continues to hunt for them and they use a variety of disguises and tactics to elude him. A wild clay throwing fight ends the film.

The stooges are mistaken by a gangster for the "Three Horsemen of Boulder Dam", famous football players. Hired to play for his team, they blow the big game and get it in the end. Lucille Ball has a nice part as a gun moll.

The stooges are three doctors who graduated medical school by being in it for too many years. They come across such problems as an overly chirpy nurse, a mental patient, and a combination to a safe swallowed by the hospital superintendent in the course of their attempt to get through the day.

A professor bets that he can turn the stooges into gentlemen. After many attempts to teach them etiquette, he brings them to a fancy society party. The stooges' new found manners don't last very long, and the party quickly degenerates. By the end, the other guests have adopted stooge-like behavior and the stooges leave as gentlemen.