With only a few days to go until The CW’s Crisis on Infinite Earths kicks off, the network has released one final trailer to get viewers hyped for the event. The annual crossover between the Arrowverse TV shows—Arrow, The Flash, Supergirl, Batwoman, and Legends of Tomorrowadapts one of the biggest storylines in DC Comics history, and previous teasers and promo images have featured characters from all five series, plus fellow CW DC series Black Lightning and past DC film and television series. The final trailer reveals a bit more about the shape of the event, and teases the destruction of some familiar locales.

The most substantive new information relayed by this trailer is about the mission the heroes are on for The Monitor (LaMonica Garrett). “Across space and time there exist seven heroes who can save the multiverse,” he intones, with the Clark Kent of Earth-38 (Tyler Hoechlin) volunteering to find those heroes. From there we get glimpses of Tom Welling as the Smallville version of Clark Kent, Kevin Conroy making his live-action debut as Bruce Wayne, and Cress Williams‘s Black Lightning agreeing to help The Flash (Grant Gustin). We also get another look later on at The Flash of Earth-90 (John Wesley Shipp).

Assuming all four of them are part of The Monitor’s group of seven, that leaves three unaccounted for. Likely Brandon Routh as the Superman of Kingdom Come is one of them as well. Could Mia Smoak (Katherine McNamara), the grown daughter of Oliver Queen (Stephen Amell) and Felicity Smoak (Emily Bett Rickards), be one of those heroes as well? There’ve also been shots of Carlos Valdes as Vibe in previous trailers, even though Cisco got rid of his breaching powers last season; is he from the past? Producer Marc Guggenheim has also said that the Earth-1 Laurel Lance (Katie Cassidy Rodgers), who died several years ago on Arrow, will be making an appearance during the event.

Beyond that, there are a few other new things to be spotted in the trailer. In the Earth-38 universe, the apparent destruction of Argo, home to a group of surviving Kryptonians, is shown, as is the destruction of Earth-38 itself. Immediately after the shot of Kevin Conroy as Bruce Wayne, there’s a brief first glimpse at what I’d guess are The Anti-Monitor’s shadow demons. We also see shots of ships landing near a crowd of people, and a brief scene in which The Monitor and Oliver discuss evacuating a planet (possibly Earth-38, since its destruction is shown immediately following that scene).

Check out a few choice screengrabs from the trailer below, or just watch it again and bask in the Crisis-y goodness. The CW’s Crisis on Infinite Earths event kicks off this Sunday at 8PM Eastern.

Tom Welling as Clark Kent
Kevin Conroy as Bruce Wayne
Black Lightning (Cress Williams) and The Flash (Grant Gustin)
The Monitor (LaMonica Garrett) and Pariah (Tom Cavanagh)
Supergirl (Melissa Benoist), The Flash (Gustin), and Superman (Tyler Hoechlin)
Kara Danvers (Benoist) and Kate Kane (Ruby Rose)
Green Arrow (Oliver Queen)
Are these the broken glasses of the Clark Kent of Earth-38?
The Flash of Earth-90 (John Wesley Shipp)