Thomas, Percy and The Pony is the 46th Short of Tomica Thomas and Friends.
After Gordon ran over Percy's Little Pony, Percy takes her to the vet, but runs out of water and begins to cry. Thomas appears pulling the local passenger train. Percy explains that Gordon ran over his pony, and after looking at the pony at a scary surprise, Thomas agrees to help with the pony, after he strands his passengers and coaches in the middle of nowhere.
Instead of taking the pony to the Vet, Thomas takes the pony to a ravine and throws her down into the ravine, telling her not to come back. Later, Thomas was taking on water when Percy came and asked about the pony, Thomas lies that the pony didn't make it and there was nothing the vet could do. Percy agrees to Thomas' made up story and leaves, crying about his pony, but Thomas thinks he can get over it.
That evening, Annie and Clarabel were talking to Thomas about their long strand and what Sir Topham Hatt would say, until Edward shows up and tells Thomas that Percy is leaving Sodor now that his pony passed away. Thomas worries for his torture friend and decides to joins Edward to stop Percy from leaving Sodor, after he leaves Annie an Clarabel stranded in the middle of nowhere, again.