Ultraseven: S1 E45 - The Saucers Have Come Ultraseven

A timid boy named Fukushin with a passion for astronomical observation, lives in a downtown industrial area. At night, he observes a group of flying saucers approaching and informs the TDF, but no illegularities were to be confirmed. It was Alien Perolynga who secretly came to Earth under a special barrier field that could cloak them as star clusters!