The film centers around Ultraman Taro growing up, and wanting to join the Ultra Brothers in battle. His family, however, thinks he is too young. Taro eventually proves himself after saving the 5 Ultra Brothers from the evil Grand King, created by Juda.

将《奥特Q》直到《爱迪奥特曼》的怪兽与奥特曼的名战斗场面集然后再追加编集的剧场版作品，由奥特曼兄弟的老大·佐菲负责解说。本作有36只大怪兽登场。