A young boy discovers the existence of a group called the Mooncussers - a gang of pirates that work at night and sends out false homing signals to ships at sea. The ships then crash on the shore, where they are looted by the gang.

Director George Sherman's 1959 circus drama stars Michael Callan as a cocky aerialist causing romantic problems under the Big Top.

Helped by socialite Janice Kendon and barkeeper Scott O'Brien, Arizona deputy sheriff Les Martin works to solve three brutal murders in and around the Grand Canyon. His efforts leads to the killer fleeing with Janice as a hostage and a chase by car and helicopter lead to a climax on a miner's bucket on cables a mile above the canyon floor.

A US submarine and its crew are captured by the Japanese on the eve of a major WWII battle.