Fans of The CW's shared superhero universe didn't need to wait long for their first look at DC's Legends of Tomorrow in action. As part of the network's media upfronts, the first promotional image of the assembled superheroes (and villains) was just an appetizer, with the first trailer answering more than a few of the fans' most vocal hopes.

It's all here: a time-traveling adventure to take down the immortal DC Comics villain Vandal Savage, a resurrected White Canary (Caity Lotz), and finally, a version of The Atom who can do more than mimic Marvel's resident armor-clad billionaire - he can shrink.

The trailer may use more existing footage from both The Flash and Arrow than fans would hope (it's no Supergirl-level preview), but with the show's actual production not coming until later this year, the above footage was captured solely to show where the series was headed. And the producers didn't disappoint, packing more than a few surprises into the official announcement.

A first look at Hawkgirl (Ciara Renée) in action is sure to have fans demanding a closer look at her wings, but her own 'past lives' backstory, like the reason for time master Rip Hunter (Arthur Darvill) to assemble the team in the first place, will remains a mystery for now.

DC Legends of Tomorrow Canary Lazarus Pit

For starters, the trailer officially confirms how Sara Lance (Caity Lotz) will be joining the series: resurrection as a result of the Lazarus Pit's magic. That's not an entirely shocking solution (it's the one we predicted some time ago), but a chance to re-imagine the character free from the demands - and constant mood-and-brood - of Arrow is more than welcome. Aside from Lance's decision to finally sport a more... practical costume, the trailer shows that Sara may finally get to crack a smile on a regular basis.

Not every hero may be keeping the form fans know and love, as the presence of Professor Martin Stein (Victor Garber) still keeps the involvement of Ronnie Raymond (Robbie Amell) a mystery. The footage actually shows Stein to be the one wielding the power of Firestorm, meaning the relationship of the two men established on The Flash has been re-written. That isn't to say that Amell will be entirely absent (the "Firestorm" fiction is flexible, as to exactly who is controlling the matrix), but the season finale of The Flash is now must-see television for those in search of the answer.

DC Legends of Tomorrow Victor Garber Caity Lotz

Of course, the network chose an appropriate moment to cap off their trailer (advertising a show not set to premiere until the 2015-2016 midseason): the long awaited shrinking of Ray Palmer (Brandon Routh). Those watching Arrow and The Flash have seen more and more hints that Palmer was looking to make his exosuit more than just armor, and can now breathe easy knowing it wasn't simply a nod to the fans, but a promise of what's to come.

The exact science behind his shrinking may never be entirely sound scientifically, but the fact that the scene looks to take place within S.T.A.R. Labs places it alongside Central City's metahumans in terms of believability. And at the end of the day, we doubt fans will bicker over the way in which The Atom shrinks - so long as he does.

DC Legends of Tomorrow Atom Shrinks

There is plenty to discuss in the above trailer, including the scale of action filmed for the pilot alone. Will Rip Hunter lead the team throughout different time periods and locations to stall Vandal Savage's plans throughout history? Has the time-altering of The Flash spun these events into being? How do Professor Stein's cardigans not burn up during flight?

Be sure to offer your own thoughts and theories in the comments below!

When heroes alone are not enough… the world needs legends. Having seen the future, one he will desperately try to prevent from happening, time-traveling rogue Rip Hunter is tasked with assembling a disparate group of both heroes and villains to confront an unstoppable threat — one in which not only is the planet at stake, but all of time itself. Can this ragtag team defeat an immortal threat unlike anything they have ever known?

DC’S LEGENDS OF TOMORROW stars Victor Garber (“The Flash,” “Alias”); Brandon Routh (“Arrow,” “Superman Returns”); Arthur Darvill (“Doctor Who”); Caity Lotz (“Arrow”); Ciarra Renee (“Pippin”); Franz Drameh (“Edge of Tomorrow”); with Dominic Purcell (“The Flash,” “Prison Break”); and Wentworth Miller (“The Flash,” “Prison Break”). Based on the characters from DC Comics, DC’S LEGENDS OF TOMORROW is from Bonanza Productions Inc. in association with Berlanti Productions and Warner Bros. Television, with executive producers Greg Berlanti (“Arrow,” “The Flash,” upcoming “Pan”), Marc Guggenheim (“Arrow,” “Eli Stone,” “Percy Jackson: Sea of Monsters”), Andrew Kreisberg (“Arrow,” “The Flash,” “Eli Stone,” “Warehouse 13”) and Sarah Schechter (“Arrow,” “The Flash,” upcoming “Pan”).

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Legends of Tomorrow will air on The CW during the 2015-2016 midseason.

Source: The CW