Godzilla has never told Mothra his true feelings and is ready to tell her

Life on Earth is never the same again. Monster island, a military base and tourist attraction dwells Godzilla, Rodan, Kumonga and two new kaijus, Cera, a gigantic triceratops and Judas, a giant great white shark 15 times the size of a sperm whale where they are stalled in case they are needed. But peace never seems to last. Mothra, a divine moth and goddess of infant island sensed a great disturbance and she flew to monster island to warn the monsters about the threat. In space, The emperor, an evil alien with a never ending hunger for power, targeted planet Earth to conquer next. Although the humans have the Earth monsters to help them, but will it be enough to stop the empire?