30 Days Without an Accident introduces the viewer of what is presently happening and what happened last season. Rick is trying to find peace with maintaining the prison. There are new people and characters as the population of the prison grows. A mission to get supplies goes array. The season premiere episode is trying to create a story and character back ground for this year's series. I have a feeling that a big problem will hit the peaceful prison soon! Perhaps the governor or a new disease. You could miss the season premiere and still follow this year's storyline. 30 Days Without an Accident is six zombies out of ten.