Star fails her first test, so she tries to play match maker for their classroom teacher to get a better grade. However, she winds up turning her into a troll.

While Marco is distracted by protecting his friend, the new school mascot, from being kidnapped by their football rivals, a confused Star believes this to be an upcoming battlefield and starts making plans of her own.

Marco breaks his arm before a Karate tournament. Star uses her wand to fix it, but accidentally gives him an evil sentient tentacle arm.

Star goes through mewberty, which covers her body in purple hearts and sets her off onto all the boys in school.

Marco and his friends work off their debt in the Shard Mines.

Marco convinces Star that fortune cookies contain magical prophecies, which leads her to dangerously believe a fake fortune.

Star leads a battle reenactment as part of a Mewni Independence Day celebration with her friends on Earth.

Star leads a class field trip to a museum in another dimension and puts the entire class in danger.

Marco decides to put a full effort into living life in the present on Earth.

Marco is determined to consume 50 tacos in order to win a special prize that is being offered at Britta's Tacos restaurant.