Doctor Beverly Crusher is secretly in romantic love since weeks with Federation ambassador Odan, who is on his way to the Alpha moon which is rebelling against the planet they were colonized from and cause potentially fatal environmental damage to its Beta moon. Crusher ignores her humanoid lover's body has an alien symbiont in his entrails, but Counselor Deanna Troi empathetically senses emotional swings which set her on the trail. Then an unrequested escort vessel from the Beta moon approaches and attacks the Enterprise shuttle which Commander Will Riker was piloting to bring the ambassador to his destination. When Riker brings Odan back to the Enterprise badly wounded, Crusher's diagnose reveals the 'parasite' and she learns his true identity. Odan urgently needs another humanoid host to perform his peace mission, for which task Riker is chosen...
Did You Know?
The appearance of the Trill symbiote would change its appearance from when it initially appeared on this episode to how it would appear on Star Trek: Deep Space Nine
(1993). In this episode, the symbiote's appearance was made to resemble a caterpillar with the head of an octopus. According to Make-Up Supervisor Michael Westmore
, the symbiote was re-made for DS9 to be more "streamlined" to make it easier to handle. Also the appearance of the Trill hosts would change as well. In this episode the Trill hosts had semi-ridged foreheads and no body spots, but on DS9 they have normal foreheads and body spots. See more
When a renegade ship attacks the shuttle carrying the ambassador and Commander Riker, Captain Picard inexplicably does nothing to protect the shuttle--and his first officer. The Enterprise could easily disable the attacking ship without destroying it, yet all the Enterprise does is lock a tractor beam onto the shuttle, effectively allowing the shuttle to be a sitting duck until it is within the Enterprise's shield bubble. See more
Counselor Deanna Troi
You can't be open to love if you don't risk pain.
Star Trek: The Next Generation End Credits
Composed by Jerry Goldsmith
and Alexander Courage See more