Ultraman Dyna: S1 E42 - A Vanishing Dream Ultraman Dyna

At the TPC Mars Base, a sample of the new Specium Gun is completed. Asuka and Mai are put in charge of carrying it. However, Alien Regulan, not fond of the Earthling growing stronger, makes a pre-emptive strike to sabotage this weapon! The TPC come together with all their forces for a counterattack.