The Best Episodes Written By Don Ingalls

The crew of the Enterprise discovers Klingon interference in the development of a formerly peaceful planet and is forced to help maintain a balance of power.

In ""Forget-Me-Not"" a woman who has completely lost her memory in an accident wishes to find out who she really is. And in ""The Quiz Masters"" the two most famous game show hosts in the world become contestants and challenge each other to an ultimate game to the death.

In ""Mermaid and the Matchmaker"" the mermaid, Nyah asks Mr. Roarke to end her immortality, but upon Mr. Roarke's refusal to do so she threatens to seek revenge on him and Fantasy Island. And in ""The Obsolete Man"" young man who may be replaced at his job by a computer, wants to feel like his life has a purpose once again.

Kirk and Spock encounter an alien named Lazarus who claims to be from an anti-matter universe.

In ""With Affection, Jack the Ripper"" Lorraine Peters a female criminologist sets out to discover the identity of Jack the Ripper and solve the Whitechapel mystery and finds herself marked as his next victim. And in ""Gigolo"" Stanley Hocker from Stubbenville, Ohio feels totally inadequate in matters dealing with the opposite sex, he dreams of becoming a modern day Don Juan.