The hit AMC television series The Walking Dead, based on the Image Comics post-apocalyptic zombie comic by Robert Kirkman, returns to television tonight at 8 PM EST with a 90-minute Season 2 premiere, and AMC has released the five-minute preview it screened at New York Comic Con this weekend to whet your appetite. The clip sees our cast of human survivors suddenly beset by a shambling horde of zombies on an abandoned highway, leading to several harrowing and possibly deadly confrontations. Check out the video, which includes graphic zombie violence, below.