Set in a gritty urban environment, 21 follows the story of a young man named Preston Kills, a reluctant vigilante with a supernatural twist — he knows exactly when people will die. Haunted by his unique ability and driven by a need to save lives, Preston walks a dangerous line between justice and fate. When a criminal conspiracy threatens those he loves, Preston is forced to use his powers to confront a dark underworld, blurring the lines between hero and executioner