Having received a Priority One distress call from an outlying space station, the Enterprise arrives to find they've been summoned there by a Federation commissioner merely to protect a shipment of seeds meant to sow wheat on Sherman's planet. The planet is also coveted by the Klingons, who are taking shore leave at the station. The trouble arises with tribbles - small furry creatures that seem to multiply without end. Their fortuitous presence, however, reveals both a problem with the wheat and a traitor on the space station. Written by
Did You Know?
recalled the great enjoyment all the cast had filming this episode. He noted, "The trouble we had with 'Tribbles' was [to] keep your straight face. It was just a lot of fun." See more
When Kirk and Scott discuss the fight aboard the space station, Kirk says, "What caused it, Scotty?" Right at the beginning of the next shot, we can see him clearly repeating the line, but we don't hear his voice saying it a second time. See more
Mister Lurry, you issued a Priority One distress call. State the nature of your emergency.
Uh, well, perhaps you better beam over. I'll-I'll try to explain.
You'll "try to explain." You'd better be prepared to do more than that. Kirk out.