It's the summer solstice, so Scootaloo, Apple Bloom, & their friends decide to travel around the world in one day in an effort to create the "Biggest, Longest, Funnest summer day of all time". But not everyone believes they can actually achieve what they've set out to do, leading them to get some encouraging words, in the form of a duet, from Trixie Lulamoon and Countess Coloratura. Meanwhile, Dr. Discord takes a father-daughter trip to Tokyo with Twilight.