Star Trek: The Original Series
The Corbomite Maneuver
S1 E10:
While exploring an uncharted area of space, the Enterprise is outmatched and taken in tow by a massive spherical spaceship. Doomed by the imposing being Balok and his huge ship, Kirk finally resorts to a bluff about a self-destruct system that will also destroy Balok's ship -- and the gamble pays off with surprising results.
Starring
Grace Lee Whitney, Anthony D. Call, Clint Howard