An episode of the Original Series of unknown number.
In this most excellent episode Gath'gor, Sarris and Ngh'f, three outlaws of the planet Nixvowls, unite to destroy the Protector. First, the evil trio challenges the Protector to a straight shoot-out around at the Megabuckle Asteroid Belt in the ATV-54 Nebula. The intense fighting catapults Ngh'f into a parallel universe, and seriously damages the Protector's plasma emitters.
To repair the damage, Capt. Taggart orders a Mark 11 departure from the area, with Gath'gor and Sarris in hot pursuit. Split-second maneuvering and near misses with passing comets has most of the Protector crew bouncing around the spaceship, but succeeds in slinging Sarris through a time knot, leaving only Gath'gor to fulfill their vow to destroy the Protector.
To recover from their space sickness, Taggart and Dr. Lazarus land on the anti-energy planet of Dezap, where anything electronic is useless. In a cave near a soothing waterfall, they are cornered by Gath'gor and some of his men. Gath'gor and Taggart get into epic hand-to-hand combat. They roll around until Taggart emerges victorious from underneath the waterfall with Gath'gor commander belt in his hands.