Finn Chandler, caught in a curse, must drive the last bus on Route 18 to survive. Under his "Master" Jonah Lewis's guidance, he seeks help from Edwin Lynch. Julian Lynch informs him that Edwin Lynch died three years ago, and Jonah Lewis was the first driver of Route 18, who died ten years ago. Finn Chandler is trapped in a puzzle woven by the dead. He must uncover the truth behind a tragic bus fire from ten years ago before the Ghost Festival.