(Planet Comics 003, 1940)
In his first appearance Felon is a fairly ordinary space pirate captain, terrorizing the spaceways with a fleet of cool black delta-shaped ships and a device that intercepts and disrupts communications across the Solar System.
In this capacity, Felon gets absolutely trounced by Captain Nelson Cole: his men are beaten up and then blown out of the sky by Cole and the Solar Force. The survivors are taken into custody - Felon is not specifically mentioned but he either crashed somewhere or ended up in jail.
Whatever happened, the defeat must have really stuck with Felon, because he returns for revenge in Planet Comics 004, blasting a ray gun wildly into a ballroom occupied by celebrating Solar Force officers, killing at least twenty people but completely failing to achieve his goal of murdering Captain Nelson Cole.
It's shaping up to be another extended narrative of space cops vs space crooks when Felon, Cole and the entire Solar Force fleet just kind of blunder through a time portal (well, a time beam, technically) into the 20th Century. What a twist!
While Cole and his crew are taking in the historical sights, Felon weighs up his options and immediately allies himself with the Nazis the Axis the Aggressor Nations, leading a surprise attack on the US that destroys half of New York City but crucially yet again completely fails to kill Cole or his men.
Once it's no longer a matter of humans vs aerial bombardment but futuristic space fleet vs 1940s aircraft, things quickly turn against Felon and the Aggressor Nations. Cole and his men force a global peace by the simple expedient of paralyzing all of the armies until the treaties are signed, and then chase Felon around until he hops back through the time beam ex machina vulcano to the relative safety of the future.
Now the comic turns into an extended outer space chase but honestly it was all over for Felon once the bombing of NYC failed to take out Cole. The two have a final confrontation in Felon's old bombed-out asteroid base that ends with Felon in the hoosegow.