During World War II, a junior American Army officer, Lt. Peter Stirling, gets sent to the psychiatric ward whenever he insists that an Army mule named Francis speaks to him.

Former bandit Jim Dancer becomes marshal of a Kansas town and cleans up the criminal element – with the help of his old pal, Jesse James.

Following American reporter Stephen Fitzgerald from Ireland to New York, a grateful leprechaun acts as the newsman’s servant and conscience.

Young girl gets a job at the White House as a switchboard operator and gets mixed up in politics.