DC’s Vertigo will launch Joshua Williamson’s Frostbite miniseries in September. The series was shared with the announcement of an exclusivity deal that will have Williamson only create comic book content for DC and Vertigo.

The 6-issue miniseries will be written by Williamson (The Flash, Birthright, Nailbiter), with art by Jason Shawn Alexander (Batman: Arkham City, The Empty Zone).

The story follows Keaton, a South American “coyote” who specializes in no-questions-asked transportation of people. She works in a world where a new ice age has transformed the landscape, and a new disease, called “Frostbite,” is decimating the populous. Keaton is tasked with transporting two scientists, who are vital to finding a cure, across the country. The catch is, there’s a bounty on their heads.