First three season were painful... I've never watched a show where I'm hoping that all the main characters die. The situational awareness is often zero, making you wonder if only the stupid survive. Season four is infuriating, chopping and changing timelines, and the characters making stupid decisions like that haven't been living in the new world for five minutes. At least Nick was killed off, terrible character, as well as Madison, who's flip flopping was becoming excruciating... Once they died the series improves astronomically. I upgraded the ratings from one to four stars. There's actually some very characters in season four to five.