Granny Smith was feeling bored at her home until she saw Spike and Gabby playing a pirate board game together, she takes interested of the game and is taking it more seriously than she thought as she drags Spike and Gabby on a real treasure hunt.
The Cutie Mark Crusaders have had their fair share of adventures, but now they've got to face probably the biggest one of their lives so far when a strange mare in a train shows up out of thin air. Its time to ride the rails.
Nothing shall stay the messengers of Griffonstone's postal service from their sacred duty. Not even when it's the worst winter in a lifetime, when Gabby's the only postal griffon around, and when windigos haunt the skies...
An aspiring U.S. Air Force pilot returns for the second year of his training. But things take an unexpected turn when a couple of mysterious creatures arrive in his life.