The products are adapted from the two Season Fifteen episodes, Surprise, Surprise and Tree Trouble. They have also brang back the rivalry of Steam Engines Vs. Diesel Engines.
Surprise, Surprise at the Steamworks incorporates Thomas and Victor with a couple of flatbed complete with various items while Tree Trouble at the Dieselworks has Thomas and Den facing off with Christmas deliveries.
The packs however, over in the US are out to promote the October DVD release title, Merry Christmas, Thomas!
The Steamworks and Dieselworks Christmas packs are available in stores worldwide.
Thanks to TheDirtyTrain1 for the alert.