it's gonna be one hell of a week next week and you better be excited about it! The biggest crossover episode is about to happen and it's going to epic. The CW just announced that they will feature an epic crossover event and will be aired as an episode of 'The Flash'. Exited on what it will be? Read on.

'The Flash' is now on its eighth episode for their third season. Titled "Invasion", viewers will get to see their favorite superheroes come together to fight off an enemy. The synopsis, via The Futon Critic, reads: "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."

Flash is going to busy with his city's predicament, aliens. According to Movie News Guide, knowing that he wouldn't be able to ward it off by himself, he asked Green Arrow's help only to realize that two is not enough. Then came Supergirl and the others to help kill the aliens. Will they be successful in their battle? Find out as "The Flash" season 3 airs every Tuesday night at 8 p.m. ET on The CW.