after a hit that took them to a nuclear factory, Moxxie and Millie get coated in radioactive liquid, which give them superpowers! Moxxie has the fighting skills of Street fighters Ryu, plus releasing fire blasts that take the shape of a Chinese dragon, and Millie now can inflate herself into a giant balloon, and expand her size to enormous proportions, and can be either as bouncy as a beach ball, or be as heavy, if not heavier than the heaviest bowling ball. With no control of these powers at first, Moxxie and Millie resort to go into hiding in the human world, taking Asmodean crystals to disguise as humans, and live among its people. But they're not alone, as their next door neighbors, the Parr family, have superpowers too, as the mother and father were the famed superheroes Mr Incredible and Elastigirl from back when superheroes were common, but were forced to go underground when superheroes were getting sued for the destruction their good deeds cause. Now living next door to supers, Moxxie and Millie will have to control their bizarre powers, while dark forces plot to exploit the powers of supers for their benefit
In a freak accident, genetic mutating gas spreads across New York sparing some, killing many, and giving others inhuman abilities. After Emerald (Em) loses her father, her last living family member to The Gas she learns that she gained the power to control fire at the snap of her fingers.
Instead of hiding she uses her new found abilities to help people in a society that sees her as the enemy.
Jumping from temporary home to home, becoming a part time super-powered crime fighter, and having a secret relationship with her girlfriend Kida in a homophobic city, makes life a mind boggling mess but it's nothing she can't handle ... well that was before someone comes to adopt her.