First episode of the classic TV series deals with a man(played by Earl Holliman, from "Forbidden Planet") who finds himself alone in a small town, with no memory of who he is, or how he got there, and as the episode wears on, becomes more alarmed and unhinged, as the frustrating loneliness wears him down to the point of complete nervous collapse. Outcome was likely surprising at the time, though today may seem obvious, but Holliman's performance is fine, and true origin of his character a nice parallel to the series itself, as they were both pioneering the way for others to follow. Succeeded in selling the series to the network at least.