Arrow will not air a new episode tonight, Wednesday, November 23.

After last week’s episode introduced the lethal Vigilante, Arrow will be taking a week off for Thanksgiving. Next week, Arrow will be back with the third of the four-part Heroes v. Aliens crossover between Supergirl, The Flash, Arrow and Legends of Tomorrow. This will also be Arrow‘s 100th episode.

The CW will instead air The Hollywood Walk of Fame Honors at 8:00 p.m. ET on November 23.

Watch the promo for the upcoming four-series crossover:

The synopsis for the Arrow portion of the crossover reads:

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 (#508).

“It is such a radical departure from anything that we have ever done on the show,” Stephen Amell tells TVLine of the 100th episode.

“We utilize the fantastical elements that we bring in on The Flash and carry through to Legends of Tomorrow with the present-day storyline to create something… that is not a flashback [or] a flash-forward. It’s something else entirely.”

Amell adds, “There [is] a very therapeutic moment for my character towards the end where I get to say goodbye to people that I never got the chance to say goodbye to.”

Arrow 5×08 “Invasion!” airs Wednesday, November 30 at 8:00 p.m. ET on The CW.