Set just after the American civil war, businessman and inventor Victor Barbicane invents a new source of power called Power X. He plans to use it to power rockets, and to show its potential he plans to send a projectile to the moon. Joining him for the trip are his assistant Ben Sharpe, Barbicane's arch-rival Stuyvesant Nicholl, and Nicholl's daughter Virginia. Nicholl believes that Power X goes against the will of God and sabotages the projectile so that they cannot return to earth, setting up a suspenseful finale as they battle to repair the projectile.

Fighting in the Civil War a man accidently kills his friend. Returning to Abilene after the war he finds his former sweetheart about to marry the brother of the man he killed. To pay his debt he not only refuses to win her back but takes the job of Sheriff, a job he doesn't want, when the brother asks him. Still haunted by the killing he refuses to carry a gun. But there is trouble between the ranchers and the farmers and when he finds the brother murdered he straps on a gun and heads after the killer.

A man tries to find a son he gave up for adoption years ago.

Two scheming ne'er-do-wells find a lost nuclear weapon in the ocean near Los Angeles. They decide to light-heartedly try and blackmail the city by asking for money from each citizen. This arouses the attention of the local authorities.

Jeremy Rodock is a tough horse rancher who strings up rustlers as soon as looks at them. Fresh out of Pennsylvania, Steve Miller finds it hard to get used to Rodock’s ways, although he takes an immediate shine to his Greek girl Jocasta.