Pooh's Adventures of Thomas & Friends: The Biggest Present of All is a Winnie the Pooh/Thomas & Friends crossover short film to be created by 76859Thomas. It takes place after Pooh's Adventures of Thomas & Friends: Hero of the Rails. It appeared on Google Drive as part of a double feature with Pooh's Adventures of Thomas & Friends: Misty Island Rescue on 8th December 2017 (PrinceJosh1992's 25th Birthday).
Hiro, the Master of the Railway, is returning to Sodor for a visit. Thomas, Pooh and their friends are eager to find a present for him - so eager, in fact, they forgets to tell the other engines to meet at Knapford Station.
All of the engines on the Island of Sodor are very excited. Hiro is returning for a visit and to help with the summer holiday makers. The Fat Controller is throwing a surprise welcome party at Knapford for Hiro and tells Thomas to tell all the other engines. But Thomas' mind is not on the party; he wants to get Hiro a wonderful gift to celebrate his visit. Thomas puffs all around the island, trying to find something special for Hiro. Later, Thomas arrives at Knapford, but no one is there, as Thomas had not told anybody about the party. Thomas quickly races around the island and soon they all arrive at Knapford. Thomas apologises for not finding a gift, but Hiro insists that the best present of all was having all of his friends together.
- Woody Woodpecker, Ttark, Twilight Sparkle, Spike, Applejack, Rainbow Dash, Rarity, Fluttershy and Pinkie Pie are guest starring in this film.
- Thomas & Friends: The Biggest Present of All first broadcast along with the other Thomas & Friends: Season 13 episodes on Milkshake in the UK in 2010, the same year My Little Pony Friendship is Magic: Season 1 first broadcast on the Hub Network in the US.
- 76859Thomas's upcoming film Pooh's Adventures of Thomas & Friends: Misty Island Rescue and this short film were originally supposed to be released on Google Drive or Dropbox in October 2017, but were moved to 8th December 2017, due to production delays.