The war against the Dominion reaches its final confrontation when Sisko leads the Federation Alliance in an attempt to invade the Cardassian homeworld.
Several months after Deep Space Nine was handed over to the Dominion, the Federation is losing the war.
Odo struggles with his choices between his friends and the Link. Sisko faces a suicide mission in order to reclaim Deep Space Nine.
With the wormhole closed and the orbs darkened, Sisko struggles to find a way to re-establish contact with the Bajoran Prophets.
Sisko is ordered to launch attacks against Cardassia and the Dominion. In his absence, Dax is left in command of the station.