As Alpha Quadrant races begin to colonize planets in the Gamma Quadrant and their presence becomes known, disturbing reports indicate that what the Dominion cannot attain through trade is forcibly seized. These reports are justified in "", when a large fleet of Skrreea ships appears in the Alpha Quadrant, in search of a new homeworld in light of the conquest of their original planet by Dominion forces. The actions of the Dominion are contrasted with the reactions of the regular characters to the Skrreea refugees. Executive producer Michael Piller has suggested that the plot evoked real-world debate surrounding Proposition 187, a Californian law concerning the rights of illegal aliens.