AMC has released a new trailer for Season 4 of The Walking Dead, which features the song "Heavy Games" by Portugal. The Man. Although it doesn't feature any new footage from upcoming episodes, fans can relive some of their favorite moments from this past season, set to this stirring track. Check out the trailer to get prepared for this week's episode "Still", airing Sunday, March 2 at 9 PM ET on AMC. In addition, we also have eight new photos from last week's episode "Claimed" and two images from "Still", which you can check out below the trailer.