Best friends Melia and Jo construct and create together with their trust robot Reynaldo, making the world a little better with each new invention. Together, they’re a STEAM DREAM TEAM! (STEAM = Science, Technology, Engineering, Art, and Math). In “Marshmallow Castle” Jo searches for a setting for her new dance, while Melia struggles to make a catapult. As their quests criss-cross their talents combine, yielding a pair of discoveries and a song.