Dylan Hunt and the crew of the Andromeda return for the penultimate fourth season of the hit sci-fi show. In this season, the Commonwealth that Dylan once restored looks set to betray him and destroy everything. The Collectors are manipulating each situation and the crew must decide whether to stick by their Captain and accompany him on yet another voyage to save the universe. Will they live to fight another day? Elsewhere, the crew must stop an assassin from stealing the minds of the most prolific scientists in the Commonwealth; save a woman who is to be murdered by her insane father and with the threat of genocide and the outbreak of a deadly disease, they must mediate an apocalyptic war.