Yesterday Today Tomorrow 3: Black Force

Five years later (fifteen years after the first Lightning). The Black Hearts are breeding amongst themselves, their offspring's are growing up fast and in five years they are as old as a twenty year old, they are known as the New Hearts or the Newts, a first generation. They have no need for Guardians and these new breeds are taking over Earth, the White Hearts are questioning their surrogate children because one of them is bound to betray them. And when they start using humans as Slaves mankind must find a way to stop this before they make things worse for Yesterday Today or Tomorrow.