"Secret of the Three Super-Weapons!"
Reprinted from Flash (Vol 1) #135 - Flash and Kid Flash must foil an alien invasion with the help of three super-weapons sent by the invaders' enemies. Features the origin and first appearance of Kid Flash's yellow costume.
"The Slowpoke Crimes!"
Reprinted from Adventure Comics (Vol 1) #129 - Johnny Quick battles crooks who foil his speed by operating in slow motion.
"Campaign Against the Flash!"
Reprinted from All-Flash #13 - Dapper Don Dolan publishes a fake article condemning the Flash, forcing his retirement. It's up to a new hero, Muscleman, to defeat Dolan and restore the Flash's image.
"Riddle of the Sleepytime Taxi!"
Reprinted from Detective Comics #359 - Elongated Man tracks down criminals who kidnap foreign VIPs in a specially-rigged taxi and secretly photocopy their documents.
"The Man Who Mastered Absolute Zero!"
Reprinted from Flash (Vol 1) #134 - Flash and Elongated Man team up to recapture Captain Cold after his escape from prison -- but something's causing Elongated Man to hurt the effort more than help!