The Walking Dead: 400 days is the prologue to The Walking Dead Season 2. In 400 days the player controls 5 different characters and experiences a short story of their experience in the early days of the zombie apocalypse. The Walking Dead: 400 days isn't as engaging or well written as season one but it still is an enjoyable experience. 400 Days usually comes packaged with season 1 now so it's worth playing at least once.