Alexander's cha'DIch Worf has tasked him with a near-impossible task for his Errand of Valor: rescue the workers rebelling against a deuterium mega-power, Archanis Inter-Corporate. He must fight selflessly in the name of the helpless... even if it costs him his life. If that weren't enough of a challenge, a face from Alexander's bloody past appears to test where his heart truly lies. Meanwhile, in the minefield of the Alpha Quadrant, Ro, B'Elanna, and O'Brien find themselves in a stalemate between the Cardassians and Section 31 that could end explosively.