Mothra! The Queen of the Monsters! Rival to Godzilla! Protector of Earth! Dead!
Wait... dead? That's right! The Queen of the Monsters is currently no more... that is, at least not in this time period! But with the power of the Shobijin, our recently reunited twins can travel back in time to the Jurassic Period and find a baby Mothra they can raise to save the day! It's a simple plan, really.