Queue up those DVRs, Z Nation fans! The undead are back, and they're ready to raise a little hell with an explosive start to season 3.

Murphy, Warren, and the rest of the Operation Bitemark crew will return to action this September, opening the season with a two-hour movie. Set to air on Sept. 16, the special airing will take viewers back in time to meet Z Nation's new big bad ahead of the premiere on Sept. 23.

"We're stating with what I like to refer to as a version of a Doctor Who Christmas special, we're starting with a little Apocalypse special," Anastasia Baranova teased. "We're going back in time - I won't say when, but we are going back in time to some time. Basically there's a story in and of itself, but it also sets up what happens in season 3."

Once the Syfy series returns to its weekly format, our heroes will have to decide what to do about Murphy's (Keith Allan) latest plan. The zombie hybrid is ready to launch a dangerous play to save humanity, but the world's remaining humans might have a few qualms.

"After discovering their mission to bring Murphy, the only known survivor of the zombie plague, to a viral lab took an unexpected turn, the team is now split on the future of mankind. Murphy wants to create a race of human-zombie "blends," while the gang, led by Lieutenant Warren are determined to stop him at all costs," Syfy teased. "In the Season 3 premiere, Warren's group is taken prisoner by a new foe, but it won't be long before Murphy and Warren face a showdown."

Meanwhile, the fate of 10k (Nat Zang) is still up in the air, Citizen Z (DJ Qualls) will make a new friend in the arctic, and little baby Lucy will morph into a teenager before you know it! Find out more when Z Nation returns to Syfy at 8 p.m. ET on Sept. 16.

Tags: Z Nation television Syfy