In this journey through the Fifth Dimension, Frank and Dan witness three astronauts crash land after being lost from radar for 24 Hours. With no recollection of the events, the three men begin to feel as if they don't belong in this world. They slowly feel themselves being pulled back into Oblivion by someone..something, in the Twilight Zone.

This episode was Written By Rod Serling, Based on an original short Story by Richard Matheson " The Disappearing Act"