You must be registered with the source of
to continue watching. Please click "Continue" to register for a free account, it only takes a minute.
The Enterprise crew makes first contact with the Vissians, a species with three genders. Trip meets one of the species’ third gender, known as Cogenitor, and learns how badly Vissians treat all Cogenitors. Trip attempts to help the Cogenitor, even though it interferes with Vissian culture.