'Supergirl,' 'Arrow,' 'The Flash,' & 'Legends Of Tomorrow' Crossover

While doing press for Teenage Mutant Ninja Turtles: Out of the Shadows, Arrow star Stephen Amell was asked whether or not his DC Comics character would ever cross over with Melissa Benoist’s Supergirl. After all, it was a fair question because the former CBS show had been renewed by Amell’s home, The CW for a second season. He thought it was “highly likely,” but left it at that. Following Thursday’s upfronts event, however, the network came out swinging with all its superhero might and told reporters that all four of its comic book-based properties, including The Flash and Legends of Tomorrow, would merge for the mother of all crossovers in the fall.

According to Entertainment Weekly, CW President Mark Pedowitz exclaimed, “Just imagine what our superhero crossover episode is going to look like come December.” It wasn’t just an offhand joke about the obvious fact that almost every one of DC’s television properties (save Gotham on Fox) would be on The CW. Rather, this is something that’s actually going to happen, for as Pedowitz explained in an official announcement:

“Next season, Arrow, The Flash, Legends of Tomorrow, and now Supergirl will join forces in our annual crossover event, our biggest ever.”

This comes as no surprise, as CBS’s sister network has often paired Greg Berlanti-produced shows together for major crossovers in the past. For example, Arrow helped launch The Flash when Barry Allen (Grant Gustin) featured in an episode, then he and Amell’s Oliver Queen/Green Arrow teamed up to introduce many of the characters who would later form the group behind Legends.

To celebrate the announcement, Caity Lotz — a former Arrow regular who plays Sara Lance/White Canary on Legends — snapped a photo from inside her “super elevator” and posted it to Twitter. Amell, Gustin, Benoist and all the other major players are there.