"Tears of the Prophets" is the 26th and final episode of the sixth season of the American science fiction television series Star Trek: Deep Space Nine, the 150th episode overall. It was first broadcast in broadcast syndication in the United States the week of June 15, 1998. It was written by Ira Steven Behr and Hans Beimler, and directed by Allan Kroeker. The episode featured the death of the character Jadzia Dax and the final appearance on the series of actress Terry Farrell.

Set in the 24th century, the series follows the adventures of the crew of the Starfleet-managed Bajoran space station Deep Space Nine. The station is adjacent to a wormhole leading to the distant Gamma Quadrant; the wormhole is home to powerful alien beings worshiped by the Bajorans as the "Prophets". The later seasons of the series follow a war between the United Federation of Planets and the Dominion, an expansionist empire from the Gamma Quadrant that has already absorbed the nearby planet of Cardassia. In this episode, the Federation decides to move on the offensive against the Dominion. Captain Benjamin Sisko (Avery Brooks) is warned by the Prophets not to leave Deep Space Nine, but decides to ignore their warning. As Starfleet attacks a Cardassian star system, the former Cardassian leader Dukat (Marc Alaimo), possessed by one of the Pah-wraiths, the enemies of the Prophets, kills Jadzia (Terry Farrell) and disables the wormhole. After Jadzia's death, Sisko declares that he is leaving the station and returning to Earth.

Tears of the Prophets

The premise of the attack on the wormhole originated as a plan to end the seventh season of DS9, and was again suggested for the end of season six when planning began for that season. The imminent departure of Farrell caused problems for the writers as they sought to include both elements into the episode. The episode raised themes of revenge and the conflict between military service and religion. Although the critics' reviews were positive and the episode received a high level of press coverage due to the publicized death of Jadzia Dax, it was viewed by 3.9 million viewers in the first broadcast, the lowest of the season.

Tears of the Prophets

Plot

Admiral Ross (Barry Jenner) informs Captain Benjamin Sisko (Avery Brooks) that Starfleet intends to go on the offensive in the war against the Dominion. They decide to attack the Chin'toka star system—but must attack soon, as intelligence arrives that the Cardassians and the Dominion are about to improve Chin'toka's defenses with unmanned weapons platforms. Meanwhile, Lt Cmdr. Worf (Michael Dorn) and Lt Cmdr. Jadzia Dax (Terry Farrell) discuss their plans to have a baby.

Tears of the Prophets

The night before the attack, Sisko receives a vision from the Prophets, who warn him not to leave the station. Sisko tells Ross about the vision, who responds that he must decide between his duty to Starfleet and the Prophets.

Meanwhile, the Cardassian leader Damar (Casey Biggs) and his Dominion handler Weyoun (Jeffrey Combs) receive an unexpected visit from Damar's predecessor, Dukat (Marc Alaimo). Dukat discloses his plan to allow one of the enemies of the Prophets, the Pah-wraiths, to possess him. He breaks a Bajoran artifact, releasing a red mist that enters his body.

The attack fleet arrives at Chin'toka just as the weapons platforms are activated. As the fleet is being destroyed, on board the USS Defiant, Elim Garak (Andrew Robinson), a Cardassian working with Starfleet, infers the platforms can be taken offline if they find and destroy the central power source.

On Deep Space Nine, Dax is visiting the Bajoran Temple when Dukat, possessed by the Pah-wraith, suddenly transports in; he hits her with bolts of energy from his hands and she collapses. He opens an Orb of the Prophets and the Pah-wraith leaves his body, entering the Orb, which turns black. Outside the station, the Bajoran wormhole implodes.

On the Defiant, Sisko is shaken, sensing the attack on the Prophets; Major Kira (Nana Visitor) takes over and successfully commands the destruction of the weapons platforms. After the battle, they are summoned urgently back to the station. When they arrive, they are informed that the wormhole is gone and all the Bajoran orbs have turned dark.

Dr. Bashir is able to save the Dax symbiont that shares Jadzia's consciousness, but not Jadzia herself. She survives long enough to say goodbye to Worf. Over Jadzia's coffin, Sisko decides that he must take a leave of absence on Earth. He departs with his son, Jake (Cirroc Lofton), leaving Kira in charge of DS9.