Four years have passed since the fall of the Earth 2-18 Rangers. The Arbiter's systematic genocide of the Power Rangers across the multiverse has gone unchecked... until now. With a small army of rag-tag survivors left behind in the First Ranger's wake, the Unworthy Rangers have returned to settle a long overdue score. But even with time, training and legendary heroes on their side... will they be enough to defeat the Arbiter once and for all?