Tom's life hangs in the balance as his beamer drifts into space during which he encounters a surprising guest. Meanwhile, the 2nd Massachusetts go on the offensive against the espheni 致珀普与萨拉。当人性走下神坛。梅森一家的惊悚日常。 TNT正式宣布续订《陨落星辰》(Falling Skies)第五季,但这将是该剧的最后一季。最终季的订数退回常规的10集(该剧本季有12集)。