Season six opened with the survivors hunkered down in the Safe Zone, where many of the new episodes are expected to take place. And with it, we can expect producers to delve into the back-story of many of the most elusive characters from last season.

Originally broadcast as single episodes of a television program from 2015-16. Special features: Episode 616: Last day on Earth -- extended version; deleted scenes; making of; In memoriam; 601: Out of the quarry; Guts & glory: the death of Nicholas; Strength in bonds; Negan: Someone to fear; The face of death: Iconic walkers of the season.