Season 4 has a record of 77 episodes. The first half has Winter themed episodes. The other half has Spring themed episodes. Only 2 episodes have been confirmed. It will air November 24th to February 9th. Making it the first season to have only one episode made each day.


  1. A Thanksgiving Celebration
  2. The Truck (episode)
  3. The End of November
  4. The End of November Redux
  5. The Final Decision
  6. A Really Useful Engine
  7. A Day at the DieselWorks
  8. Flatbeds and Logs
  9. Tender Couplings
  10. The Importance of Lamps
  11. Douglas' Breakvan Problem
  12. Thomas and Percy's Important Load
  13. A Story About a Tank Engine
  14. A Day to Remember
  15. Coaches and Passengers
  16. Gordon, and Henry; Two Proud Tender Engines
  17. Thomas & The Express
  18. The Freeze
  19. Douglas' Lunar Eclipse
  20. A New Record
  21. Thomas' Snowplough
  22. Snowploughs and Buffers
  23. Percy's Promise
  24. Promises for Percy
  25. Even More Promises for Percy
  26. Edward Proves A Point
  27. Toby's Surprise
  28. Henry and the Snow
  29. The Winter Solstice
  30. The Days Before Christmas
  31. Toby Saves the Day
  32. A Christmas Special
  33. Boxes and Crates
  34. Mud
  35. A New Colour
  36. Paint Cans
  37. Douglas' Revenge
  38. Another Great Arguement
  39. Douglas' Special Train
  40. A Bad Omelette
  41. More Bad Omelettes
  42. A Really Useful Diesel
  43. Paxton's Busy Day
  44. Respect for Percy
  45. Emily, Gordon, and the Coaches
  46. Bulgy's Second Chance
  47. A New Line
  48. The Return of Paxton
  49. Trucks All Day
  50. New Coal
  51. Smoke and Steam
  52. Time is Time
  53. A Final Journey with Coal?
  54. Thomas' Turntable Spin
  55. Percy's Search for James
  56. Percy and the Mail Contest
  57. Edward, James, and the Mail
  58. The Replacement
  59. Thomas' Prank
  60. Thomas, No.1 of the Railroad
  61. James' New Wheel
  62. More New Wheels
  63. Overheated
  64. The Fall Out
  65. Henry and The Flying Kipper
  66. James' Fishy Day
  67. Fog
  68. More Foggy Days
  69. Too Tired
  70. Trucks, Ballast, and Engines
  71. A Bigger Prank
  72. Even More Pranks from Thomas
  73. James the Fooled Engine
  74. Bill, Ben, and Edward
  75. The Meeting
  76. Branches
  77. Thomas in Trouble



  • Thomas
  • Edward
  • Henry
  • Gordon
  • James
  • Percy
  • Toby
  • Sun
  • Mercury
  • Venus
  • Earth
  • Mars
  • Jupiter
  • Saturn
  • Uranus
  • Neptune
  • Nix
  • Diesel 10
  • Diesel
  • Arry
  • Bert
  • Den
  • Dart
  • Paxton
  • Norman
  • Sidney
  • Mavis
  • Salty
  • Murdoch
  • Arthur
  • Belle
  • Flynn


  • Duck
  • Donald
  • Douglas
  • Oliver
  • Bulgy
  • Molly
  • Rosie
  • Stanley
  • Charlie
  • Rocky
  • Captain
  • Hiro
  • Lincoln
  • Jen
  • Anna
  • Joe
  • Scott
  • Maxwell
  • Neil
  • Glenda
  • Teresa
  • Nelson
  • Jack
  • Alfie
  • Oliver (excavator)
  • Kelly
  • Byron
  • Ned
  • Isobella
  • Patrick

After This

Season 5 will air on Febuary 14th-19, 2012 with only five episodes. Seasons 6, 7, & 8 will have 10 episodes each. Season 9-20 will have 7. Season 20 will be the end of the series.


  • The Winter Solstice was going to be the pilot but A Thanksgiving Celebration replaced it and the pilot was the Thanksgiving special. The Winter Solstice is now in the middle of the season.
  • This season has the most episodes and introduced the most characters.
  • All the episodes were winter themed instead of Winter and Spring.
  • This is the first season to have only one episode made each day. Others had about 3-6 episodes made each day.
  • It will 'air' from November 24th to February 9th. It was originally slated to 'air' from November 23rd to February 8th.
  • It had the Thanksgiving, Christmas, and New Years specials.
  • The Mystic River Traction Company Railway Engines are also to appear in some of the episodes.
  • The season was suppose to air from November 23rd to February 8th. And The Thanksgiving Celebration wasn't suppose to air. Instead "The Christmas Hype" would take its place. And that would be the special.
  • This season properly introduced Donald & Douglas.
  • This is the first season to have the end or start date in 2012.
  • Since The End of November Redux, Henry is blue and will be blue until Season 10 at least. Also since Flatbeds and Logs the engines have two-way radios as mentioned by Dash.
  • A Bad Omelette was the 100th episode of the Thomas & Friends: Adventures on Rails series.
  • This season saw many engine's overhaul- Paxton, Percy, Gordon, Thomas, James, Edward's. Although all of them barring Paxton were mainly because of one part, but were considered an Overhaul. it also saw the beginning to Henry's illness which will be more explained throught the eighth season.

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