The Island Of Sodor was covered with snow. Everywhere the engines looked, they could see nothing, but snow. Sir Tophamm Hat had a special assignment for Thomas.
Sir Tophamm Hat: I got a Christmas tree that will be arriving in Brendam Docks soon. Once you get it, I want you to bring the tree right to Knapford Station.
Thomas: You can count on me sir. *Goes to get tree*
However, on his way to get the tree, Thomas found out that it was missing.