DC Week is coming! The 4-night crossover event begins Monday, November 28 on The CW.

Finally! The moment we have been waiting for all season long has finally been released. The ultimate in crossover events will occurr on The CW when The Flash, Supergirl, Arrow, and Legends Of Tomorrow converge in the Arrowverse.

The trailer gives us a first official look at The Dominators, the alien race that will invade Earth during the upcoming four-show crossover and shows us how our favorite superheroes join together to stop them.

They sort of resemble E.T. but in a much more terrifying way and they don't appear to be friendly either!

"This year, for our mega 'Arrowverse' crossover, we’re taking inspiration from a DC crossover from the late 1980s known as Invasion!, which featured an alien race called the Dominators, who’d previously vexed the Legion of Superheroes," said Arrow and DC's Legends of Tomorrow executive producer Marc Guggenheim. "We’re using cutting edge prosthetics and computer effects to achieve a feature film-quality look which is faithful to Invasion! artist Todd McFarlane’s interpretation of the characters.”

Marc Guggenheim, executive producer, has previously told fans their Invasion! arc will be one of the most "ambitious" things they have done over at The CW.

“This year, we’re doing by far the most ambitious crossover we’ve ever done. It’s basically a huge three-part story that also brings in Supergirl, so it’s crossing over all four shows. It’s telling one big epic movie of a story. It’s not setting up any other spin-offs, it’s just big, bombastic, huge action. There’s also some really poignant character moments. There’s a lot of plot lines, particularly I would say in Flash and Legends, that come to fruition in the crossover. It’s by far the most ambitious thing we’ve ever attempted. I want to say it’s by far one of the most ambitious things anyone in network television has ever attempted. It’s completely insane.”

Supergirl airs Mondays at 8 p.m. ET/PT; The Flash on Tuesdays at the same time; Arrow on Wednesdays and DC's Legends of Tomorrow on Thursdays. All four series air on The CW. The "Invasion!" crossover will air beginning November 28.

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