An illness sweeps the Enterprise, easily treatable for all except Spock, for whom it is fatal. Kirk arranges a tight rendezvous to get strobolin, the cure, in time to save Spock, but Orion pirates raid the cargo ship en route. Finding the Orions hiding within an explosive asteroid belt, Kirk means to strike a deal, unaware that all unsuccessful Orion missions end in suicide, with intent this time to take the Enterprise and crew along in an explosive finish.
Did You Know?
It is stated that McCoy has been practicing medicine for 25 years. See more
A close-up of Sulu at 14:21 shows another empty chair in the background. All seats should be filled during the time of emergency that they're in. See more
All unsuccessful Orion mission end in suicide.