Something smells fishy about the Lunch Lab's newest member, an awfully hairy little girl named Franny. Some quick thinking by Mixie reveals Franny is actually Fast Food Freddy in disguise! The gang decides to teach their new friend "Franny" about the benefits of a tasty snack with good fats.
Fast Food Freddy hypnotizes the entire city (and the Lunch Lab gang) with his new creation: The Lazy Hazy. Mixie is the only one who's not affected. She whips up some delicious Energy-Boost Bars to save the day. Fizzy and Mixie hit the streets to get everyone moving again.