The Life and Legend of Wyatt Earp is a television western series loosely based on the life of frontier marshal Wyatt Earp. The half-hour black-and-white program aired for 229 episodes on ABC from 1955 to 1961 and featured Hugh O'Brian in the title role.

After being released from prison, ex-gunfighter John Wesley Hardin hopes to have his autobiography published in order to rehabilitate his tarnished reputation.

Astronauts blast off to explore the moon on Rocketship X-M or "Rocketship eXploration Moon". A spacecraft malfunction and some fuel miscalculations cause them to end up landing on Mars. On Mars, evidence of a once powerful civilization is found. The scientists determine that an atomic war destroyed most of the Martians. Those that survived reverted to a caveman like existence.

Tensions erupt within an Arizona cattle baron's household when his three sons vie for control of the ranch.