When a starving white man, who considers himself one of the highborn caste, takes food from an Untouchable the natives now consider him to be a part of that caste.
A scientist builds a robot that can survive the voyage to the moon, but when it arrives, it constructs a factory to duplicate an army of robots for the purpose of conquering Earth.
An opera singer, who can shatter glass with his voice, is tried to be interrupted during his performance by a surgeon but the man fails to get to the singer in time. He hits the high note and dies because the surgeon had put a glass plate in his head.