May the Best Pet Win!.After seeing the rest of her friends out in the park on a playdate with their pets, Rainbow Dash (with the help of Fluttershy) tries to find herself an animal to be her pet using a series of contests. However, Fluttershy insists that a tortoise compete in the competition as well. After a series of events, Rainbow Dash challenges the four flying finalists to a race through Ghastly Gorge, the one crossing the finish line with her to be her new pet. In the race, Rainbow Dash's wing is caught under a rock, but the tortoise, who had continued to race, arrives to help free and take her to the finish line. Rainbow Dash is proud to call the tortoise her new pet and names him Tank due to his tenacity.