Rumbling Rails. Sometimes, Thomas likes to pretend he lives in outer space in a galaxy far far away. Get ready to puff where no engine has gone before, in the next thrilling installment of Big Galaxy Big Adventures. After saving the galaxy from Diesel's devious plan, Nia has mysteriously disappeared. Thomas and Percy are searching for her in space near Planet Brendam when our heroes meet an engine that's always full of surprises and has a bigger surprise for them.