Explorers from Earth have wiped out the Martian race with chicken pox. But only one man is willing to stand up for the civilization they left behind. Based on a story from Ray Bradbury's The Martian Chronicles, this episode of Dimension X originally aired on September 29, 1950.

Featuring "adventures in time and space told in future tense", Dimension X aired over NBC from April 8, 1950, through September 29, 1951. The series adapted stories by the modern masters of science fiction, including Ray Bradbury, Robert Heinlein, Clifford Simak, Theodore Sturgeon, and many others.