Best Friends Day is the fifteenth episode of the eighth season.
It is Best Friends Day, and Jacob and Sierra are celebrating their friendship. Thomas and Percy, however, have never heard of Best Friends Day, so Jacob and Sierra tell them what it's all about.
||Jacob, Meg, Sierra, and the Snow | Jacob's First Skate | Marion and the Miniature Engines | The New School | Marion and Ned | Marion and Daisy | Keeping to the Timetable | Jacob, Sierra, and Bradford | Geoffrey's Real?! | Stuck In The Snow | Sidney's Commitment | Gordon's Express Delivery | The Blind Engine | Solutions | Best Friends Day | Blown Away | Jacob, Sierra, and Hugo | Jacob, Sierra, and Lexi | Jacob, Sierra, and Theo | Journey Beyond Knapford | Jacob, Sierra, and Merlin | Hugo and the Dinosaurs | Jacob and Sierra's Birthday Shock | Amethyst's First Snow | The Old Repair Yard | Importance | Untitled Cancelled Episode (cancelled)
|Characters With Main Roles
||Hank | Jem Cole | Jacob | Sierra | Amethyst | Hugo | Merlin | Madison | Rosie | Hurricane | Frankie | Lexi | Theo | Skiff | Thomas | Percy | Mia | Frank | Gordon | Sidney | Duck | Geoffrey | Bradford | Samson | Marion | Daisy | Ned | Meg | Mike | Rex | Bert | Raphael (cancelled)