Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics. Schwartz kept editorial records for Robert Kanigher, who edited this issue.
Introduction of the teenage underground fighters of Unit 3.
Fan letter from Guy Lillian.
Noted as "A Demand Classic."
Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics. Schwartz kept editorial records for Robert Kanigher, who edited this issue.