When a new boy, Jesse, comes for an extended visit to Horseland, Bailey is overjoyed to have a boy his own age to hang out with. When he starts neglecting his friendship with Alma, Molly, and Sarah, though, tension grows. Chloe and Zoey, always jealous of his relationship with the other girls, go out of their way to ensure that much of his time is spent with Jesse. When Horseland is chartered for the Birthday party of the annoying Ethan Simon, though, the friends must get back together to organize the party.