DS9 Season 1 Episode 6 Captive Pursuit

Plot

A damaged, unidentified vessel from the Gamma Quadrant docks at Deep Space Nine for repairs. Its reptilian pilot, identified only as Tosk, is the first known life-form from the Gamma Quadrant to visit the station. Chief Miles O'Brien suspects Tosk is running from something due to evidence of weapons fire on his vessel. O'Brien befriends Tosk and tries to help him repair his ship. However, Tosk attempts to steal from a weapons locker and is put in a holding cell by Security Chief Odo (René Auberjonois).
Uniformed aliens arrive through the wormhole, beam onto DS9, and start a phaser battle with a team led by Commander Benjamin Sisko (Avery Brooks). The aliens fight their way into the brig where Tosk is being held. Sisko, O'Brien and Odo enter the room as one of the aliens (Gerrit Graham) expresses his disappointment at finding Tosk captured alive; Tosk, it transpires, is the alien Hunters' quarry. The Hunter commands Sisko to lower the forcefield and release Tosk, but Sisko refuses. They discuss the issue and the Hunter agrees to place the wormhole out of bounds for future hunts. As much as he detests this practice, Sisko believes that under the Prime Directive, the law forbidding interfering with alien cultures, he must release Tosk to the aliens.
After talking to the bartender Quark (Armin Shimerman), O'Brien realises that he can change the rules of the hunt before Tosk is taken away by the Hunters. He lies to Odo and convinces him to release Tosk into his care, claiming it is a Starfleet, not a Bajoran matter. O'Brien escorts the Hunter and Tosk to an airlock, but the Chief has it rigged to overload, knocking out the Hunter, allowing O'Brien to help Tosk escape. In Ops, Sisko is informed about the situation and tells Odo to pursue the duo at a leisurely pace, giving O'Brien time to help Tosk escape the station with the Hunters in pursuit. Later, an angry Sisko reprimands O'Brien for his actions; the Chief expresses his surprise at not being apprehended immediately by Odo. Sisko claims that he must have slipped up and smiles wryly after O'Brien has left his office.