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?