Guest stars:

William Marshall        Dr. Richard Daystrom, brillient and genius in computer systems and design. winner of the Nobel and Z Megna prizes. Designer of the computer systems on the Enterprise. Designer of M 5 Multitronic unit.

Barney Russo            Commodor Robert (Bob) Wesley
Sean Morgan             Ensign Harper, engeneering tech killed by M 5.
Commodor Enwright, not seen (voice is Scotty)Star Fleet command
 
Crew Appearances:
Kirk Spock McCoy
Uhura
Sulu
Scott
Chekov
Philips-astrobiologist (not seen)
Rollins-Geologist (not seen)
Carstairs-Geologist (not seen)

Dr. Richard Daystrom is given permission by the Federation to hook his state-of-the-art computer, the M-5, to the Enterprise to prove that a starship can be run more efficiently by a machine than by humans (only 20 crew needed). For a time, things go perfectly and Kirk begins to feel useless, but eventually the M-5, whose memory patterns are based on Daystrom's, acts without logic, destroying another starship for no reason. Kirk, rising to the occasion, talks a machine to death....again.

Alpha Carina 2: class M planet

Star Ships used in the war games:
USS Excalibur (distroyed by M5)
USS Lexington C. Wesley aboard
USS Hood
USS Potemkin

Woden: old style automated ore frieghter, unmanned, distroyed by M5

Finagle's Folly: a drink (its green)

Seetar of Vulcan: genius that produced a new and revolutionary theory of unknown subject

Spock uses the neck pinch on Daystrom

Quotes:
"Did you see the love lights in Spock's eyes? I think the right computer finally came along" McCoy
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"Dunzel? Who the blazes is Dunzel?" McCoy
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"Men no longer can need die in space or an some alien world. Men can live and go on the achieve greater things than fact finding and dying for galactic space which is neither ours to give or to take." Daystrom.
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"It appears we've been doing what used to be called pursuing the wild goose." Spock
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"This unit must die." Scotty's voice of M5
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"Genius doesn't work on an assembly line basis, Spock. You just simply can not say, 'Today, I will be brilliant." Kirk.