Fawcett's Finest: Dynamic Duo x Two

On the same case wherein they first encountered Captain Marvel, the crimson crusaders of Earth-S' Gotham City met another dynamic duo, this pair from New York City. The high-flying Bulletman and Bulletgirl were on the trail of the same criminals whom Mister Scarlet and Pinky had just collared inadvertedly. While this was a rather inaspicious meeting that left the younger sidekick frustrated, it was a foreshadowing of the eventual team all four would become members of... the Squadron of Justice. Of course, they were have to remain frozen in amber for decades within Sivana's Suspendium glob orbiting the solar system before they finally officially worked together as teammates in a modern age.