The eternal search for income leads the Firefly team to the planet Canterbury. But the deal seems suspicious to Mel, and he decides to refuse. However, Jane Cobb's greed overcomes him, and the thug secretly smuggles a trunk with an unknown device on board the Serenity. From this point on, the entire team begins to hallucinate about the life they could have had, about unfulfilled dreams and hopes. It would seem that there is nothing wrong with dreams, but the operation of the “machine of illusions” has a deadly side effect.