Sir Topham Hatt's railroad engines, Harold the helicopter, and Bertie the bus learn about good manners and hard work.

Naughty Diesel the train engine gets in trouble by misbehaving but then redeems himself in a time of crisis.

When a nasty new diesel engine causes trouble for Thomas the Tank Engine and his friends, Thomas undertakes a daring mission to bring back the legendary golden engine, Lady.

Thomas is just in the way as his friends help prepare for a big ocean show at the docks, but when Percy is startled by one of the exhibits and creates havoc, Thomas helps get things back on track.

Thomas the Tank Engine learns not to tease the big engines and pulls his first passenger train.

Stepney, a very old engine, is taking the museum cars to the Natural History Museum. James and Henry think that not only is Stepney an old "bucket of bolts," but that the museum cars carry "just a lot of old nonsense." When Stepney breaks down, Thomas doesn't want to get stuck being seen with the old dinosaur bones and relics of the past. What will his friends think, and more important, what will the children say? Thomas is in for a big surprise!

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