Three has always been quite a plucky, lively and determined little Numberjack, and one day, curiosity gets the better of her as she goes up to see what has been going on in the control room. Unfortunately, she isn't fully aware of the dangers the missions bring, and when friendships are tested, can Three, Four, Five & Six form a strong team, or will their relationships fall apart?

In which one or more characters have certain scenes told or retold through another's eyes, having a new context to the scene. TODAY!: Addison Darnell has always loved steam engines and hated diesels, but what happens when she's forced to try and kill an innocent steam engine?

Dowager Hatt running the railway left it in a mess, but there are some consequences harsher than others. As Duck, Edward and Philip get put through the wringer, can Dowager Hatt make things right with them? Or does fate have another plan in store?

Mist and fog is very hazardous to the Tugs. It can create problems with navigation and potential crashing. But when O.J. looses his glasses, it becomes more harmful than anyone could have suspected as he suddenly goes missing. Can the Star Tugs find O.J. before it's too late?