DC Comics had a monstrous summer. Suicide Squad opened to almost $134 million, and comics from the publisher have outsold the competition every week for months. DC’s next move will pit its two titan groups, the Justice League and Suicide Squad, against each other in a bloody battle event that will extend through December and into January.

DC announced Thursday that the series will begin with “a six-issue weekly miniseries, beginning with a special prelude in the pages of Suicide Squad #8, and with issues of Suicide Squad (#9 and #10) and Justice League (#12 and #13) serving as tie-ins during January.”

At first glance, the members of Suicide Squad seem outranked by the Justice League. However, DC has added some new members in the comics sphere, divorced from the villains moviegoers saw earlier this summer. The Squad currently includes Harley, Deadshot, Black Manta, Reverse Flash, Deathstroke, Rick Flag, Killer Croc, Boomerang, Katana, El Diablo, and The Joker pops in on some storylines. On the other hand, the current Justice League includes Batman, Superman, Wonder Woman, The Flash, Cyborg, Aquaman, and the entire Green Lantern Corps. Unless Justice League pulls in some of its ancillary characters, including Martian Manhunter, Green Arrow, and Shazam, they might be in trouble.

The prelude to Justice League vs Suicide Squad hits comic book stands in Suicide Squad #8, in November.

Photos via DC Entertainment