• Air date: 25 Aug '14 26 episodes
      The eighteenth season of the television series began airing on August 25th, 2014 in the UK and on November 4th, 2014 in the US. It contained twenty-six episodes. Like the seventeenth season, five episodes were released on DVD in the US before airing on television. It concluded in the UK on July 31st, 2015.
  • List of Episodes (26)
    • 1. Old Reliable Edward

      25 Aug '14
      Gordon is always teasing Edward for being old and unreliable and never thanks him for helping him up the hill. One day, Thomas decides to play a trick on Gordon to give Edward the respect he deserves.
    • 2. Not So Slow Coaches

      26 Aug '14
      Annie and Clarabel are always complaining about Thomas' speed, until one day they are accidentally coupled to Caitlin. Can Thomas stop high-speed Caitlin before she takes his carriages to Mainland?
    • 3. Flatbeds of Fear

      27 Aug '14
      After hearing an eerie noise at the docks, Salty tells Thomas that it's the Flatbeds of Fear looking for an engine to couple up to. The word spreads and soon Henry and Emily hear the spooky noise and are running scared.
    • 4. Disappearing Diesels

      28 Aug '14
      Diesel gets all the other diesels to hide from Paxton who thinks they've all disappeared. Diesel gets carried away and takes the joke a bit too far, but despite this, Paxton still helps him when he runs out of fuel.
    • 5. Signals Crossed

      29 Aug '14
      Toby is worried about going through Knapford Junction. With the help of Henrietta and Thomas, Toby conquers his fear and is even responsible for spotting a faulty signal.
    • 6. Toad's Adventure

      01 Sep '14
      Toad is bored of listening to Oliver's stories and wants an adventure of his own. He gets his wish when some trucks breakaway on Gordon's Hill. Can Toad stop the trucks before they collide with Thomas?
    • 7. Duck in the Water

      02 Sep '14
      James needs to rescue Duck from a flood. James collects Rocky, but doesn't wait for the crane's arm to be secured. Rocky's arm knocks over a signal which leads to all sorts of trouble.
    • 8. Duck and the Slip Coaches

      03 Sep '14
      It is high summer, when many tourists visit Sodor and The Fat Controller is concerned about getting them all to their destinations on time. Duck tells the other engines about the slip coaches they used on the Great Western Railway that can be uncoupled at stations without stopping. James then tells the Fat Controller and claims it as his idea. But James has never used slip coaches before and soon runs into trouble!
    • 9. Thomas the Quarry Engine

      04 Sep '14
      When Thomas and Diesel are sent to collect trucks from Ffarquhar Quarry, they argue about who should be the back engine.
    • 10. Thomas and the Emergency Cable

      05 Sep '14
      Thomas is on his branch line when a passenger pulls the emergency cable and he has to stop quickly. But it turns out not to be an emergency at all, but a bird watcher who has spotted a rare bird.
    • 11. Duncan and the Grumpy Passenger

      08 Sep '14
      Duncan, the grumpiest engine on the narrow gauge railway, gets a taste of his own medicine when he receives a very grumpy passenger.
    • 12. Marion and the Pipe

      09 Sep '14
      Marion uncovers what she thinks is the mast of a Viking ship while doing some repairs on an embankment. Thomas suspects that she may have hit a water pipe, but Marion is not so sure.
    • 13. Missing Gator

      10 Sep '14
      Percy misses his friend Gator and ends up rushing around as he tries to keep his mind occupied. He is so busy that he loses control of some trucks, which roll into an old mine.
    • 14. No Steam Without Coal

      11 Sep '14
      Bill and Ben run out of coal during a shortage at Clay Pits and have to rely on Timothy, who runs on oil, to help them out.
    • 15. Spencer's VIP

      12 Sep '14
      Spencer brings a VIP back from the mainland, but is so intent on doing a good job that he does not notice that he has been sent down the wrong track.
    • 16. Toad's Bright Idea

      15 Sep '14
      It is a slow day for Gator when he finds himself sitting around with nothing to do. However when Oliver breaks down, Gator is more than happy to help.
    • 17. Long Lost Friend

      23 Dec '14
      Gator returns to the Island of Sodor after being away for a long time. He is looking forward to seeing his old friend Percy.
    • 18. Last Train for Christmas

      24 Dec '14
      It's Christmas Eve and a lot of passengers are coming home to Sodor for the holiday. Connor can't carry all the passengers who are trying to get on his train.
    • 19. Duncan the Humbug

      25 Dec '14
      Everyone is happy at Christmas time except for Duncan, the Scottish narrow gauge engine, who seems to be grumbling even more than usual.
    • 20. The Perfect Gift

      26 Dec '14
      The whole island is celebrating Christmas and there are decorations everywhere. But it doesn't look very Christmassy at the scrap yard. Percy starts to worry that Reg is missing out and he tries to find something to give Reg to cheer him up.
    • 21. Emily Saves the World

      27 Jul '15
      Emily gets overly excited whilst taking a special to the Animal Park and loses a giant model of the world, but on her way, she loses it,a and thinking it's still there,my he other engines get confused.
    • 22. Timothy and the Rainbow Truck; Timothy and the Rainbow Car

      28 Jul '15
      Bill & Ben trick Timothy into going on an island-wide search for a multi-colored truck. But when the oil-burning engine realizes he's been duped, Salty helps him find a clever way of making the twin's trickery come back to bite them.
    • 23. Marion and the Dinosaurs

      29 Jul '15
      Marion thinks she saw dinosaurs in the middle of the night, but passes it off as a dream. She then gets a real shock when they seem to be real.
    • 24. Samson at Your Service

      30 Jul '15
      After losing his way on his first day, new engine Samson has become a laughing stock amongst the engines. The strong little tank engine is determined to get through his day without making any mistakes, but has no such luck.
    • 25. Samson Sent for Scrap

      31 Jul '15
      When Scruff breaks down, Samson is sent to help Harvey collect scrap from the lineside, but Samson takes his instructions a little too literally.