Star Trek the Next Generation - Darmok

The Federation have been trying without success over the course of 100 years to establish relations with the Children of Tamar, a truly strange civilization of people who communicate through metaphor and imagery. Captain Picard is hopeful that the crew of the Enterprise will finally make progress and decipher their strange and complex language, but things get complicated when the Tamarian Captain beams them both down to a planet where they have to hunt an invisible beast.