The Earth stopped in its tracks when it was announced that Grant Gustin’s Flash would make a special appearance on CBS’s Supergirl.
The conspiracy theories started to circle when the title of the episode was revealed as “Worlds Finest.” On surface level, it seemed that it was just paying homage to the Superman/Batman team-up title. But the removal of the apostrophe said otherwise.
With season two of The Flash focusing on parallel worlds, we have learned much about Earth-2; especially with the most recent episode, “Welcome to Earth-2.” Said episode also set the confirmation of the crossover in stone. As they traveled through the breach, if you didn’t blink, you could see an image of Melissa Benoist’s Supergirl.
Wasting no time with the March 28th episode of Supergirl, filming has already went underway. Pressing their two insignias together, Grant Gustin took to Instagram with a selfie of him and Benoist on set:
Praise Jack Kirby! It’s a great time to be a comic book fan.