Suspense takes some rare trips into the otherworldly realms of science fiction in this bonus episode. John McIntire is a mad scientist with an equally mad experiment in "Donovan's Brain" (originally aired on CBS on Februay 7, 1948), and Jack Benny is a one-man welcoming committee on Mars in "Plan X" (originally aired aired on CBS on February 2, 1953). Two Ray Bradbury stories come to radio life in "Zero Hour" (originally aired on CBS on April 5, 1955) and "Kaleidoscope" (originally aired on CBS on July 12, 1955). A test pilot returns with a warning from space in "The Outer Limit" (originally aired on CBS on March 17, 1957), and an average Joe has to convince aliens not to destroy Earth in "You Died Last Night" (originally aired on CBS on April 1, 1962).