When Leon brings a mystery egg home from school, Cat Ninja and Master Hamster face their biggest challenge yet: babysitting! And while they’re pretty sure they can keep an egg out of trouble, they know they’re in over their heads when that egg hatches into a high-energy ball of feathers and cuteness. It’s baby’s first superhero adventure when they decide to bring their newest family member along as they uncover the identity - and nefarious motives - of Metro City’s latest foe.