An episode that fell very flat for me. As it turns out, taking both Spock and Kirk off the board for well over half the episode (by having them possessed by aliens) just wasn’t very interesting. It was probably fun for Nimoy and Shatner to try something a little different, but they just didn’t have much to work with. McCoy was left to cover the regular crew all on his own, and apparently that’s more than he can really manage.
49 down, 688 to go.