> TOS > EPISODES
> THE IMMUNITY SYNDROME >
Eleven years ago, the U.S.S. Farragut encountered a
deadly cloud creature with vampire-like tendencies. James T.
Kirk was on board the Farragut at that time as they
entered the region of Tycho IV. The creature killed the ship's
commander, Captain Garrovick, and half the crew by draining
their red blood cells. To this day, Kirk feels guilt at having
hesitated before firing at the creature
even though his phaser blast had no effect.
On his way to deliver necessary medical supplies, Kirk
encounters what he believes is the same blood-sucking entity.
He pursues it, against orders, determined to destroy it before
it kills again.
A landing party beams down to the surface of Argus X, where
the creature has taken refuge. In the party is the son of
Kirk's former captain ... Ensign Garrovick. Garrovick spies
the creature and, like Kirk 11 years before, hesitates before
firing. The creature escapes and Kirk blames Garrovick for the
resulting death of a crewman.
The creature leaves the planet with the U.S.S. Enterprise
in pursuit. When Kirk fires on it, the creature turns and
enters the starship. Fortunately, its first victim is Spock
and, after tasting his copper-based Vulcan blood, flees toward
its home world, Tycho IV. Fearing the creature will reproduce
and, at the very least, kill others, Kirk and Garrovick
prepare a trap with a matter/antimatter bomb and human blood.
They lure the creature to take the bait and beam aboard the
Enterprise as the creature is killed in the resulting