Rick Grimes is a former police officer of the King County sheriff's deputy who was shot in the line of duty and fell into a coma only to wake up and find himself in the middle of an undead apocalypse. He travels to Atlanta, Georgia searching for his family, Lori Grimes, his wife, and Carl Grimes, his son, who have traveled to Atlanta with his best friend, Shane Walsh, in search of a safe-haven.