Syfy has debuted a new trailer for "Hunters," the new alien drama produced by "The Walking Dead's" Gale Anne Hurd.

Written by Natalie Chaidez (“Heroes”), it’s inspired by Whitley Strieber’s 2013 novel “Alien Hunter,” about a Philadelphia cop obsessed with finding his missing wife. His search leads him to a secret government unit tasked with hunting a group of shadowy terrorists who may not be from this world.

The thriller stars Nathan Phillips ("Wolf Creek") as Flynn, a headstrong Baltimore FBI agent with a dark past trying to piece together the disappearance of his wife. Britne Oldford ("American Horror Story") plays Regan, one of the government’s most valuable operatives with some secrets of her own. Julian McMahon ("Nip/Tuck") is McCarthy, an unhinged junkie and Hunter cell leader.

“Hunters” premieres Monday, April 11, at 10 p.m. ET/PT on Syfy.