Lightning Jim is a captivating Old Time Radio show that follows the adventures of U.S. Marshal Lightning Jim Whipple, his dependable horse Thunder, and his deputy, Whitey Larson. The show first aired in the 1940s as The Adventures of Lightning Jim on the West Coast, and later returned as a syndicated ZIV series in the 1950s, totaling 98 episodes.

Set in the Wild West, Lightning Jim showcases a mix of historical events and characters such as Wild Bill Hickok, as well as exploring the development of the Union-Pacific Railroad. However, the show also includes stereotypical representations of Native Americans and other Western subjects. Despite its rare surviving episodes, Lightning Jim remains a treat for avid listeners of Western radio dramas.