The Flash: Invasion Sneak Preview Released

If you are ready to watch the Flash kick alien butt alongside Green Arrow and Supergirl, then you're time is nearly here. Tonight, the long-awaited superhero crossover on The CW kicked off with Supergirl, and tomorrow will see the event continue on with The Flash. Now, a brand new preview for the thrilling episode has been released, and it shows Barry Allen and Oliver Queen taking on some unexpected enemies.

In the video, fans can see the Flash and Supergirl racing it out in a bid to see which hero is faster. The two never truly settled that race back when Barry Allen tumbled into Supergirl's world last year, so fans might finally get an answer to the question.

For Barry's sake, the hero better be faster than the Kryptonian heroine. After all, it looks like Supergirl and a slew of other heroes are forced to fight the Flash and Green Arrow because of a mind-control snafu. The alien race which the Flash wants gone has the terrible habit of controlling minions, and it seems they've turned their eyes to Supergirl, Thea, and the Legends of Tomorrow.

If you want to check out the full synopsis for "Invasion!" then you can read it below:

"IT'S HEROES VS. ALIENS IN THIS EPIC CROSSOVER EVENT — When aliens called the Dominators attack Central City, Barry (Grant Gustin) speeds over to Star City to ask the Green Arrow (guest star Stephen Amell) for help in stopping them. Realizing the battle against the Dominators is bigger than they thought, they track down the Legends of Tomorrow, and Barry and Cisco (Carlos Valdes) create a breach to bring back a secret weapon – Supergirl (guest star Melissa Benoist). Once all of the super friends are assembled, they come up with a plan to attack but a shocking secret related to Flashpoint is revealed and suddenly no one is sure who they can trust. Meanwhile, Wally (Keiynan Lonsdale) wants to join the battle against the aliens but Iris (Candice Patton) tells him he's not ready."

Supergirl Flash Arrow Legends Tomorrow Invasion Crossover Extended Trailer
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Dermott Downs directed the episode with story by Greg Berlanti & Andrew Kreisberg and teleplay by Aaron Helbing & Todd Helbing.

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.