Strike Against The Nazis
Written by
Joe Cal Cagno (writer), Jack Alderman (artist)
Released 1940
Printed in Daring Mystery Comics #5 (Jun. 1940) with 6 color pages. Reprinted in Marvel Masterworks: Golden Age Daring Mystery - Volume 2 (Feb. 2010).
"When the Sky Devils get captured on a photographing mission, they soon escape and are rescued from their pursuers by K-4."