Thomas and Friends: Blue Mountain Mystery

Discover the mystery of the lost engine and be introduced to the exciting new destination Blue Mountain Quarry! In this action-packed adventure, Thomas discovers a new engine hiding in the tunnels, and sets off to uncover the truth and get to the bottom of the mystery. Along the way he meets four new engines bought to Sodor from faraway lands... Will Thomas piece together the story and convince his new friend there's no reason to hide?