The story is set on Midsummer’s Eve, when the mysterious military unit takes over a peaceful seaside town. All data networks are disrupted, and the region falls silent. The motives and the origin of the enemy remain shrouded in mystery, with the whole of Europe being taken by surprise and under shock. Local residents turn into hostages, including 21-year-old Annika Berg, who is doing her military service. In seconds, her military exercise turns into a real crisis, involving actual casualties. Is this an isolated incident, or the first step to push the world into a new global conflict?
第2季的《陨落星辰》将从Tom被绑架后的3个月开始继续,当Tom在向外星人解释人类为何负隅抵抗的同时,Colin Cunningham饰演的John Pope则暂时成为了领头人。据悉,第2季的回归将不会有前戏“闪回”,所以Tom的回归以及和Pope的关系将可能成为第2季首播回归集的重要内容。