Super-Mystery Comics v1 #5

This anthology issue contains multiple stories featuring various heroes and villains. One story follows a submarine crew attempting to apprehend a fleeing enemy vessel after rescuing a downed airman, with members of the crew attempting to capture the enemy craft before they escape. Another story features Q-13, America's spy fighter, assigned to catch foreign spy Arnold Rire who has stolen military fortification charts; Q-13 receives a mysterious telegram from Mexico directing him to intercept Rire at a railroad station. The issue also includes appearances by classic heroes such as Vulcan, The Black Spider, and The Clown, with additional action-adventure content throughout.