Zoe and Rosita help Nina dog sit but their arms get tired after continuously throwing the balls. They don't give up and keep thinking of a way to solve this problem. They figure out how to design a bike-powered ball-throwing machine they can pedal using their feet. They are two real engineers!.

Abby and Rudy want to bring nature inside Hooper's so Chris can feel like he's outside. Abby uses her mom's magic wand but makes a mistake and fills Hooper's with too many animals and plants. Abby apologizes for using her mom's wand without permission and together, with her mom, she learns how to fix her mistake without using magic.