The adventures of Thomas the Tank Engine and his friends on the island of Sodor. Thomas is often in trouble and finds it difficult to be a useful engine.
Everyone wants to know more about a new engine called Geoffrey, who Thomas invented to take the blame for an embarrassing accident.
CGI animation. When Toby tries to attract attention after running out of coal at the scrapyard, the other engines think that he is being scrapped.
CGI animation. Thomas, Annie and Clarabel are keen to impress when the railway inspectors come to the island of Sodor.
CGI animation. After Henry hears that the Fat Controller's grandchildren have chickenpox, every engine he meets seems to be covered in spots too!
Sir Topham Hatt sends Thomas to the docks to collect a very important Christmas parcel.
The snow is causing all sorts of trouble for the engines.
Spencer delights in telling the other engines about meeting the abominable snowman.
CGI animation. Toad, Oliver's brake van, spots a stranded whale on the beach and soothes it with his singing while Search and Rescue decide how to rescue it.
CGI animation. Percy is late collecting some sheep for an agricultural fair and doesn't notice a hole in the back of his wagon and that the sheep are escaping.
CGI animation. When Salty must travel by ship to the mainland, all those scary stories about sea monsters that he loves to tell begin to scare him too.
Animation. When Mavis has an accident, Den is sent to work at the quarry until she is repaired, separating him from his best friend and team-mate Dart.
CGI animation. Thomas accidentally causes Hiro to be derailed and goes to the woods to find material for the repair work - without telling anyone where he is going.
CGI animation. It's Christmas, but Diesel won't help with the extra work. Thomas makes him see the error of his ways with the aid of some ghostly engines.
As Sodor's oldest engine, Stephen worries about being able to keep pace with the younger engines, especially since Gordon often must slow down for him.
Philip thinks that Toby is a diesel boxcab just like himself and wants to become friends, but Toby doesn't like doing the same things as Philip.
Emily really admires Caitlin, who shunts her to the castle when she breaks down. But later when Caitlin's brakes fail, Emily has a chance to save her hero from an accident.
An energetic little diesel boxcab named Philip arrives at Knapford and challenges Gordon to a race.