The Walking Dead: Compendium One

The story begins before the zombie outbreak has happened where sheriff's deputy Rick Grimes and his partner, Shane, are in a shoot-out with a prisoner who escaped jail in Grant County. Rick is shot in the chest, while trying to flank the prisoner which puts him into a coma. A month later, Rick wakes up in a hospital bed and finds himself in an abandoned hospital. He falls out of his bed and calls for help, but no one comes. After dressing himself, he explores the hospital, finding a corpse which falls backward into the opening elevator; as well as a cafeteria door that is blocked by a piece of wood. Rick removes the piece of wood and opens the door only to find multiple zombies inside the room. One of the zombies lunges at Rick which causes them to fall down a set of stairs where the zombie's head becomes decapitated.