13 parts Ongoing MatureWhen the world ends, the doctors of Seattle are forced to become more than healers; they must become survivors. Fleeing the ruins of Seattle Grace Mercy West, Callie, Arizona, Meredith, Owen, Mark, and their families and friends navigate a brutal new reality where every day is a fight for life. As they cross a walker-infested continent, haunted by grief, love, and the hope of sanctuary, they discover that the bonds forged in the operating room may be the only thing stronger than the apocalypse.
In a shattered world, can the skills that once saved lives help them build a new one?