An anthology series published by Comic Magazines an imprint of Quality Comics for 127 issues from August 1941 through October 1953.

The series featured several characters throughout its run, the main character was Plastic Man which ran from issue #1-102.
Other characters were:
Firebrand #1-13.
711 #1-15.
Dewey Drip #1-93.
Eagle Evans #1-10.
Chic Carter #1-18.
Super Snooper #1-23.
Steele Kerrigan #1-13.
Mouthiece #1-13.
Dick Mace #1-70.
Phantom Lady #1-23.
Burp the Twerp #2-55.
Human Bomb #1-58.
Manhunter #8-101.
The Spirit #11-102.
Destiny #16-35.
Candy O'Connor #37-102.
Flatfoot Burns #19-67.
Specks #56-82.

With issue #103 all the previous super-hero character stories were canceled and the focus of the series was to law enforcement titles to better match its name, the new titles were:
Ken Shannon #103-127.
Dan Leary #103-107.
Detective Denver #103-127.
and "T-Man" Trask #103-127.