[Star Trek · The Original Series 50] • Star Trek · the Original Series - 050 - the Cry of the Onlies

Boaco Six, a once-tranquil Federation colony, is now caught up in the throes of revolution. The Enterprise's mission is to re-establish contact with the planet, and determine whether or not formal ties between the Federation and Boaco Six should be strengthened. Negotiations between Captain Kirk and the planet's ruling Council of Youngers proceed smoothly, until the atmosphere of goodwill is shattered by the sudden destruction of a Boacan ship, at the hands of an experimental Starfleet vessel!

In order to prevent full-scale war from breaking out, the Enterprise must recapture the stolen Starfleet vessel and its abductors, a mission that will require the aid of the galaxy's most reclusive genius, and bring Captain Kirk face-to-face with the long-buried secrets of his past.