The story begins with a young engineer, Tom, arriving on the island of Sodor to work on the railway. As he gets to know the engines, he notices that they've been acting strangely. Thomas, Percy, James, and Gordon all seem to be exhibiting bizarre behavior, and Sir Topham Hatt is nowhere to be found.
Tom investigates and discovers that an ancient curse has been placed on Sodor, causing the engines to become possessed by evil spirits. As the engines transform into nightmarish creatures, they begin wreaking havoc on the island, destroying buildings and endangering the lives of the humans.
Tom teams up with a local historian and a brave young boy who are determined to break the curse and save the engines. Together, they uncover the dark history of Sodor and learn that the only way to break the curse is to find the long-lost engine who was banished from the island many years ago.
With time running out, Tom and his team must navigate the dangerous landscape of Sodor, avoid the possessed engines, and find the lost engine before it's too late.
