Trek Novels into Episodes

[Nate the Great]

This is (I hope) a new game. We talk about what Trek novel we think could've been turned into an awesome episode (or two). I realize that I'll have to set some ground rules:

1. No New Frontier, Excelsior/Lost Years, Stargazer, yada yada. Only novels based on mainstream Trek crews. Any number of cameos are allowed, but the main characters must be senior officers.
2. Only "regular" i.e. numbered novels. Now, I happen to love the meganovels of Peter David and Jeri Taylor as much as anyone, but those could never fit into two televised hours. This rule extends to the Shatnerverse as well. You'd need an entire SERIES to do the Shatnerverse justice.
3. "Official" Paramount-sanctioned Pocket Books only, unless a compelling reason can be offered.

As a concession for afficianados of the Strange New Worlds anthologies, those stories can be nominated as a secondary category. This second category includes Strange New Worlds, the comic books, the older no-longer-remotely-capable-of-being-canon books like Spock's World (a fav of mine) and so on.

To start the ball rolling, I'd like to put forward an old TOS novel called How Much For Just the Planet?