Star Trek TOS - Object Approaching

Episode - The Corbomite Maneuver

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.

William Shatner - Captain Kirk,
Leonard Nimoy - Mr. Spock,
Anthony D. Call - Dave Bailey,
Clint Howard – Balok,
DeForest Kelley - Dr. McCoy,
Grace Lee Whitney - Yeoman Rand,
George Takei - Sulu,
James Doohan - Commander Scott,
Nichelle Nichols – Uhura,
Majel Barrett - Nurse Christine Chapel,
Ted Cassidy - Balok's Puppet,