The first teaser of the Supergirl, Arrow, Flash AND Legends of Tomorrow is here and no one can stay calm anymore. The clip is a promo for Legends of Tomorrow's launch next week and brings together the entire DC TV universe to face the consequences of The Flash's on-going Flashpoint storyline. Over on The Flash, Barry Allen's choice (Grant Gustin) to travel in time to save his mum from a brutal death continues to cause ripples in the present throughout the DC TV Universe. A future Barry Allen from 2056 contacts the time-travelling Legends in this new teaser, desperately telling them: "I can't risk putting any more lives in danger." So, Supergirl, the Green Arrow, the Flash and the Legends band together in a four-night TV event this fall to solve this time crisis and stop an invasion from an alien race known as the Dominators. The crossover is exciting enough - but there are even more DC Comics Easter eggs jammed into this extended trailer. The Legends once again go back in time to the Old West, where it looks like they'll have to save the gunslinging outlaw Jonah Hex (Jonathon Schaech) from a hangman. We also get our first proper look at old-timey superhero team Justice Society of America, comprised of DC Golden Age favourites Hourman (Patrick J. Adams), Vixen (Maisie Richardson-Sellers), Stargirl (Sarah Grey), Commander Steel (Matthew MacCaull) and Dr. Mid-Nite (Kwesi Ameyaw).
