Hayata and the other Science Patrol members are trapped by the malevolent alien invader Mefilas, who proceeds to briefly turn Fuji into a giant monster herself before resurrecting doppelgangers of Ultraman's previous enemies Baltan, Kemul, and Zarab.
“悪質宇宙人メフィラス星人登場”
ウルトラマンと同等の力を持った強敵・メフィラス星人が、バルタン星人たちを引き連れて地球侵略を企てる
