How ‘Arrow’/’The Flash’ Crossover Will Launch ‘Legends of Tomorrow’

The CW’s Arrow and The Flash are approaching their next crossover event, and it looks like this one will be bigger than ever. In addition to featuring plenty of new drama for Arrow‘s Oliver (Stephen Amell) and The Flash‘s Barry Allen (Grant Gustin), the episode is set to introduce characters from the network’s upcoming team-up show, Legends of Tomorrow — including its big bad, Vandal Savage (guest star Casper Crump).

The two-part event will kick off on The Flash, with the episode “Legends of Today.” According to a just-released synopsis, the action starts when Vandal Savage arrives in Central City and sets his sights on the newly introduced Jitters barista, Kendra Saunders (aka Hawkgirl). When Vandal attacks Saunders (guest star Ciara Renée) and Cisco, Barry decides to take her to Star City so that Team Arrow can hide her. But things quickly go from bad to worse when a man with wings aka Hawkman (guest star Falk Hentschel) shows up and flies off with Kendra.

Viewers will see the other side of the drama on Arrow’s “Legends of Yesterday.” Oliver and Barry take Kendra and Carter Hall to a remote location to keep them hidden from Vandal while they figure out how to defeat him. Malcolm arranges a meeting between Vandal, Green Arrow, and The Flash that doesn’t go as planned. Meanwhile, Felicity, Thea, Diggle, and Laurel work with Team Flash to come up with a weapon powerful enough to destroy Vandal.

“Most of the Flash episode takes place in Star City, and most of the Arrow episode takes place in Central City,” Amell teased of the episode, perTVLine. “We have a common villain [in Vandal], which was not the case last year. And, just in general, we’ve done an excellent job of weaving not just two shows, but three shows together.”

The story’s interconnectedness means that viewers should tune into both episodes, not just one — even if they typically prefer one show over the other. While last year’s crossover event was designed so that fans could watch the episodes independently, it’s a different case this year. “If you put them back-to-back on one night, they would run like one two-hour episode of television,” Amell described.

Between Arrow and The Flash’s team and the debut of some Legends members, there’ll be no shortage of heroes on the scene. In one recently released photo from the crossover, seven costume-clad heroes, including Arrow, The Flash, Hawkgirl, and Hawkman, stand together, presumably against the force of Savage. But there are even more heroes set to appear than captured in the image. As Amell teased, “We shot a scene … that had, like, nine superheroes in it. Nine people with either powers or supersuits. It was an amazing thing to look out over the scene and see the world that has been built over the course of three-plus years.”

There are some notable characters from the Legends roster missing in the still image, including Captain Cold, Heat Wave, either half of Firestorm, and Rip Hunter. It’s unclear if any of them will also appear in the upcoming crossover episode or if viewers will have to stay tuned for the Legends premiere to see the whole gang together. Whatever the case, it’s pretty clear fans won’t want to miss the action-packed crossover.

The crossover episodes will air on Tuesday, December 1, and Wednesday, December 2, both at 8 p.m. ET on The CW, while Legend of Tomorrow is set to kick off in 2016.

More from Entertainment Cheat Sheet: