This Is The Land Of Ultra! is the twenty-fourth episode of Ultraman Taro.
A European country tests the “Tron Bomb” on a distant planet Mururoa, blowing it to pieces. Though the operation is a success, it unleashes the great space monster, Mururoa, who descends to Earth with an army of Space Moths to take vengeance. The moths attack an airplane, in which Mr. and Mrs. Iwamori, the parents of six siblings, are flying. In the wake of their deaths, Shiro, one of the Iwamori siblings, runs away. Kenichi, a friend of the family, recruits Kotaro to help search for him.
Ultraman Taro Volume 6 features episodes 22-25.