Ultraseven: S1 E19 - Project Blue
Project Blue, a project to wrap Earth and moon with magnetic force to keep them safe from alien invaders, where targeted by Alien Bado. Self-proclaimed as the Emperor of the Universe, they kidnapped the project's leader, Professor Miyabe. Since Professor Miyabe doesn't tell where the documents of the project is, they started aiming his wife. Dan transforms to Ultraseven and went into Alien Bado's spaceship!