The CW’s little family of DC TV shows is going to get bigger next year with the addition of team-up series DC’s Legends of Tomorrow, and just as Barry Allen turned up in Arrow before debuting in The Flash, so too are Legends of Tomorrow‘s new heroes and villain getting an episode (two, actually) to establish them before they set out on their own. To erase any doubt that that’s exactly what the upcoming two-part crossover event is for, the episodes are titled “Legends of Today” and “Legends of Yesterday.”

While many of the aforementioned legends that will assemble for the new show are familiar faces – Ray Palmer, Leonard Snart and Martin Stein among them – two of the new recruits are Hawkgirl (Ciara Renée) and Hawkman (Falk Hentschel), warriors who have been reincarnated many times over the years and who become a target for immortal villain Vandal Savage (Casper Crump). We’ve already seen images of Hawkgirl and Hawkman in their superhero outfits (which have had mixed responses from fans), but new promos for the crossover offer a new look at their powers in action.

Specifically, we see the moment that Kendra Saunders spreads her wings for the first time, which is seemingly even more exciting for Cisco than it is for her. For the most part, however, the promos focus on Kendra and her soulmate, Carter Hall, trying to figure out just what to make of the Green Arrow, the Flash, and their ragtag teams of vigilantes and heroes.

One of the images of Hawkgirl and Hawkman we’ve seen so far showed the two wearing slim chains at their wrists, and a clip of Carter in the first teaser offers another look at this – only this time the flying superhero is wrapped up in massive chains as he assures Barry that it’s not going to be possible to get rid of Vandal Savage. In another clip, Kendra says it’s “insane” that the two superheroes and their supporting teams are prepared to die to protect her.

There are lots of other interesting tidbits, mainly in the first promo since the second focuses on a behind-the-scenes screening of the fan viewing party. We see Barry using his superspeed to save his slower companions from flying daggers as Oliver fires off an arrow at Vandal, and there’s also a glimpse of what looks like a flashback to Hawkgirl and Hawkman’s past as an asteroid flies past some pyramids towards a city.

The story links between The Flash and Arrow allow the two shows to maintain a strong joint fanbase, which means that if one show starts flagging audience members will continue watching it anyway in order to stay caught up with the DC TV universe at large. This cross-promotion helped The Flash get off to a strong start, and hopefully it will work for Legends of Tomorrow as well.

The Flash episode, “Legends of Today”, will air on The CW on Tuesday, December 1st. The Arrow episode, “Legends of Yesterday”, will air a day later, on December 2nd. DC’s Legends of Tomorrow is expected to premiere on The CW in early 2016.