Chester Wooley and Duke Egan are travelling salesmen who make a stopover in Wagon Gap, Montana while enroute to California. During the stopover, a notorious criminal is murdered, and the two are charged with the crime.

Mine owner William Sharon keeps having his gold shipments held up by a gang of bandits. Sharon hires banker Charles Crocker, who happens to have connections in the Central Pacific Railroad, to build a spur line from Virginia City to Carson City, so that the gold can be shipped by railroad. Silent Jeff Kincaid is the railroad engineer. However there is opposition to the railroad, chiefly from another mine owner, Big Jack Davis.

The story is set in Cambodia in the years following WWI. An evil count has come into possession of the secret methods by which men can be transformed into walking zombies and uses these unholy powers to create a race of slave laborers. An expedition is sent to the ruins of Angkor Wat, in hopes of ending the count's activities once and for all. Unfortunately, one of the members of the expedition has his own agenda.

The first season of the television series Lassie premiered in the United States on CBS on September 12, 1954 and ran for 26 episodes until its conclusion on March 6, 1955. Produced by Robert Maxwell, the episodes follows the adventures of a female rough collie named Lassie and her young owner Jeffrey Miller. In 1958, the first through third seasons began syndication under the title "Jeff's Collie."

Though the first season of Lassie has never been released completely to home video, some episodes from the first season have been released to DVD. On November 25, 2003, Classic Media released a three episode set, "Lassie: Best of Jeff's Collie," which included the series first episode, "Inheritance". A second set, "Lassie: 50th Anniversary Collection", was released on September 14, 2004 and contained 24 episodes from across the entire series. The set includes three episodes from the first season: "Inheritance", "The Lion", and "Lassie's Pups".