S1·E49 The Last Survivor
Aired September 5, 1976
Synopsis
Maria tries to kill Duke, thinking the person who pilots Grendizer is evil but during the fight Duke necklace falls and the siblings discover who each other is.
Aired September 5, 1976
Maria tries to kill Duke, thinking the person who pilots Grendizer is evil but during the fight Duke necklace falls and the siblings discover who each other is.