Shinzou Ningen Casshern

A scientist named Dr. Azuma designed robots to assist humanity. A lightning strike during a storm alters the programming of one of his creations, BK-1, who becomes Braiking Boss and seeks to enslave humans instead of serving them. He gathers other robots to form a powerful army. Tetsuya, Dr. Azuma's son, requests to be transformed into an indestructible android to combat the threat his father unintentionally created. After Braiking Boss captures Dr. Azuma and his wife, Tetsuya, now known as Casshern, begins a mission to rescue them. He is aided by his girlfriend, Luna, and a robot dog named Friender.