Arrow Season 5 Episode 8: Invasion! Sneak Preview

Following tonight's episode of Arrow, The CW released a teaser trailer for "Invasion!," the eighth episode of the show's fifth season.

According to the official synopsis for the episode, Oliver will deal with an alternate timeline, while Team Arrow faces off against The Dominators, a race of aliens who will be terrorizing everyone in the DC Universe starting with November 28's episode of Supergirl and running through December 1's episode of DC's Legends of Tomorrow.

You can check out the full Arrow synopsis below:

ARROW CELEBRATES 100 EPISODES; THE EPIC SUPERHERO CROSSOVER CONTINUES — Oliver (Stephen Amell) wakes up to a life where he never got on The Queen's Gambit. Robert (guest star Jamey Sheridan) and Moira Queen (guest star Susanna Thompson) are alive and well. Laurel (guest star Katie Cassidy) is his loving fiancée and their wedding is imminent. Everything seems perfect, but Oliver starts to notice small imperfections that make him question this new reality. Meanwhile, Felicity (Emily Bett Rickards) and the recruits take on a new threat with help from The Flash (guest star Grant Gustin) and Supergirl (guest star Melissa Benoist).

James Bamford directed the episode with story by Greg Berlanti and written by Marc Guggenheim & Wendy Mericle.

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.