"Siren of the Space Ark" featuring Adam Strange.
-Story written by Gardner Fox, drawn by Carmine Infantino and Sid Green; 13 pages.
-Reprinted from Mystery in Space (1964) #89.
"The Great Plutonium Plot" featuring the Space Ranger.
-Story drawn by Bob Brown; 12 pages.
-Reprinted from Showcase (1956) #15.
"Who Saved the Earth?" featuring the Star Rovers.
-Story written by Gardner Fox, and illustrated by Sid Greene; 10 pages.
-Reprinted from Mystery in Space (1951) #80.
Cover by Ernie Chua.