Advertising man Roger Thornhill is mistaken for a spy, triggering a deadly cross-country chase.

After moving to a new town, troublemaking teen Jim Stark is supposed to have a clean slate, although being the new kid in town brings its own problems. While searching for some stability, Stark forms a bond with a disturbed classmate, Plato, and falls for local girl Judy. However, Judy is the girlfriend of neighborhood tough, Buzz. When Buzz violently confronts Jim and challenges him to a drag race, the new kid’s real troubles begin.

Jim Slater’s father (whom he never knew) died in the Apache ambush at Gila Valley, and Jim is searching for the one survivor, who supposedly went for help but disappeared with a lot of gold. In the process, he gets several people gunning for him, and he keeps meeting liberated woman Karyl Orton, who may be on a similar mission. Renewed Apache hostilities and an impending range war provide complications.

A Greek Fisherman brings an Atlantean Princess back to her homeland which is the mythical city of Atlantis. He is enslaved for his trouble. The King is being manipulated by an evil sorcerer who is bent on using a natural resource of Atlantis to take over the world. The Atlanteans, or rather the slaves of Atlantis, are forced to mine a crystalline material which absorbs the suns rays. These crystals can then be used for warmth. The misuse of science has created weapons out of the crystals that can fire a heat ray to destroy whatever it touches.

Robert Ryan plays an aging sheriff responsible for law and order in a frontier cattle town. Virginia Mayo plays his fiancee. As if handling wild cattle drovers isn’t enough, a crooked casino operator from Ryan’s past comes to town. An early scuffle in the casino leaves Ryan with vision problems that interfere with his duties. Jeffrey Hunter who came to town with a cattle drive encounters Ryan, who killed Hunter’s father when Hunter was young. Feelings of animosity soon change as Hunter begins to sense Ryan is telling the truth about his father. What follows is a plot that continues to thicken to the inevitable showdown.