Equestria's divided. But a bright-eyed hero believes Earth Ponies, Pegasi and Unicorns should be pals — and, hoof to heart, she’s determined to prove it.

Barbie is disheartened when Todd breaks her heart and goes back to his former girlfriend. But things change when she comes across a diary, which makes her wishes come true.

The Pteranodon family takes the Dinosaur Train to Adventure Island, a new theme park on a volcanic island! The Conductor's archrival Thurston is in charge: he proudly shows off the park's amazing robot dinosaurs! When an earthquake causes the pressure to get too high, the malfunctioning robots go rogue. It's up to Buddy and his siblings to navigate across the island and reunite with their parents.

King Randolph sends for his cousin, Duchess Rowena, to help turn his daughters, Princess Genevieve and her eleven sisters, into royal material. But the Duchess strips the sisters of their fun, including their favorite pastime: dancing. When all hope may be lost, the sisters discover a secret passageway to a magical land where they can dance the night away.

Madeline and the girls take an ocean liner to Tahiti, where they learn to surf, snorkel and take part in native dances, while foiling a villain's evil plan to reactivate the Tahiti-nui volcano so he can loot the capitol of the island when the city is evacuated. But Madeline's enjoyment is dampened by a falling-out with her best friend, Pepito, and she discovers that a good friendship is worth more than the best vacation in the world.

Loki declares he wants to be an Avenger, so Iron Man decides to make Loki an "Avenger In Training." It's a great plan until Thanos arrives on Earth looking for Loki.

The girls try to come up with a theme for the big party to be held later that night.

Lyra Heartstrings and Sweetie Drops, high school girls, are best friends and think alike in many ways. For an upcoming competition between schools, they both apply for positions in their school's team. Trying to win the position, they start competing against each other and show-off their skills.

Sunset Shimmer studies her friends' pony hybrid transformations to better understand how magic works in the parallel world.

Rainbow Dash tries to spy on Crystal Prep Academy's sports team, but Pinkie Pie ruins her attempts to remain unseen.