"The Earth is now taken over by the mysterious Alien Batt and only a few earthlings still fighting to survive. Ultraman Dyna, who is travelling through outer space, catches the SOS signal and comes to the rescue. He is joined there by Ultraman Cosmos and Ultraman Zero and together they challenge the powerful Hyper Zetton and the troop of monsters led by Alien Batt. Will the combined strength of Ultraman Dyna, Ultraman Cosmos and Ultraman Zero have a chance to win? The last hope--lies with a new hero…"