In the Windy City, the mob infiltrates a powerful union.

A rebellious young inductee has trouble toeing the line until he meets a retired officer's lovely daughter. James and his band are also drafted and decide to perk up their camp by putting on a big show.

On her way by stagecoach to visit relatives out west, Flower Belle Lee is held up by a masked bandit who also takes the coach's shipment of gold. When he abducts Flower Belle and they arrive in town, Flower Belle is suspected of being in collusion with the bandit.

The story takes place at a summer theater in the Berkshire Mountains, where heroine Joan Barry (Carol Bruce) is staging a Broadway-bound musical comedy. Only one problem: two guest stars are shot and killed on two successive evenings, right in front of the audience. Hoping to solve the mystery, detective William Demarest demands that everyone -- actors and theatergoers alike -- return the following weekend to restage the show. But with no major performer willing to assume the fatal guest-star slot, Joan is forced to hire the Three Jolly Jesters (Al, Harry and Jimmy Ritz), Manhattan washroom attendants with showbiz aspirations.

A lawyer tries to exact justice on a woman he defended in court -- a woman whom he found out was guilty after getting her off.

Ships disappear on route across the Arctic Sea, and a special submarine is sent to investigate.