In a section of unexplored space, the Enterprise comes across a marker of sorts that will not let it pass. They destroy the marker and move on but soon find themselves in conflict with an unknown alien who accuses them of trespassing and tells them they have only 10 minutes to live. Kirk decides it's time to play a little poker and literally bluff his way out of the situation by telling the alien that the Enterprise has a device on board that will destroy the alien as well as the Enterprise. The bluff works but the alien turns out to be something quite unexpected. Written by
Did You Know?
This is the earliest episode of the main series (excluding the two pilots) to be filmed. See more
When Kirk leaves sickbay, he throws his uniform shirt over his shoulders; the tunic has only two solid gold rank stripes. In the turbo lift and changing in his quarters, his tunic has the 2½ stripe marking. See more
This is the Captain speaking. First Federation vessel is in distress. We're preparing to board it. There are lives at stake, by our standards Alien life, but lives nevertheless. Captain out.