I've been watching The Walking Dead on tv from nearly the start. The ninth season will be aired beginning next October. In 2012, Telltale Games released a The Walking Dead game. It's available on all major platforms. Now, I don't care for gaming at all but I've very much enjoyed the playthroughs of the game - without commentary(!). In my opinion the game is really well written, very exciting and has characters that are easy to care about. I also love the graphics.
The main character is a professor convicted of murdering his wife. In the beginning, he's being transported from the courthouse to prison in a police car. They're on a motorway on their way out of Atlanta. The officer driving the car and the professor are having a conversation while reports of riots are heard on the police radio and emergency vehicles are seen on driving into the city. It's the beginning of the apocalypse in the The Walking Dead universe. The professor will soon meet the other main character, a twelve-year-old girl called Clementine.
Here's a playthrough of the first episode of the first season: