The Bajoran shipyard is assigned to build an engine for a new starship, a project which could be instrumental in revitalizing the planet's war-ravished economy. As Commander Sisko awaits the arrival of a tanker containing the antimatter that will power the starship, a band of hijackers captures the extremely valuable cargo and escapes through the wormhole.
When the hijacking spurs a political debate, Major Kira struggles to mediate the dispute between the opposing factions. Meanwhile, Sisko makes a desperate move to retrieve the antimatter. With the stability of the Bajoran economy at stake, Sisko, Dax, and Odo infiltrate the hijackers, a move that could have deadly consequences for them and the planet Bajor.