It contains elements from both the original stories and their previous adaptations, along with three new characters (all reimagined versions of existing concepts), new arrangements of two songs from the live action model era ( Really Useful Engine and Troublesome Trucks) and a completely different narrative. The Adventure Begins is a computer animated retelling of the first seven episodes of the first series of Thomas & Friends, which were based on the first two Railway Series books ( The Three Railway Engines and Thomas the Tank Engine).
