All-Flash #14

In "The Man Who Unleashed the Past! Prologue" from All-Flash #14 (1944), the Three Dimwits stumble into the drawing room of All-Flash Comics, eyeing the story already laid out for the issue, and with a mix of confusion and bravado, decide to take matters into their own hands.

In "The Man Who Unleashed the Past! Chapter One: Dinosaurs, Dough and Dumbbells," the Three Dimwits set their sights on a new scheme—hiring a villain for the Flash—only to unwittingly unleash the Thinker, who’s using a time machine to summon prehistoric dinosaurs while his gang hits the city’s banks. The Flash must race through chaos as ancient beasts and modern crime collide, all while the real mastermind stays one step ahead.

In "The Man Who Unleashed the Past! Chapter Two: ?", Flash races to stop a mystery villain tied to a past crime, empowered by a court's decree to bring him to justice. Amid the chaos, Green Lantern and Doiby Dickles break the fourth wall in a playful three-panel cameo, while the creators Gardner Fox and E. E. Hibbard appear in two panels as the Three Dimwits try to push the story forward.

In "The Rise and Fall of Norman Empire, Chapter 2: [The Coded Cards]," Jo, the Flash’s ally, sends a desperate warning through a hidden signal—flipping specific cards from a window to alert the Scarlet Speedster of imminent danger. With time running out and the stakes higher than ever, the Flash must decipher the cryptic message before it’s too late.