Dr. Guthrie Durlock is a shy scientist dedicated to his work, building an unmanned Venus rocket to gather readings. When he disobeys McCauley's orders on the moon, the colonel refuses to let Durlock accompany him on the mission to retrieve the probe. Durlock goes over McCauley's head to go on the mission, but the crew soon finds itself in danger when they discover that the Venus rocket has become magnetically charged.
—Gislef