Just when Michael arrives in Berlin to visit his ex-girlfriend Gabi, a terrible virus starts spreading across the city at a rapid pace, turning people into mindless homicidal maniacs. Much to Michael's concern, Gabi's not home; instead, he meets Harper, a teenage plumber's apprentice at work in her apartment block. Together, they manage to barricade themselves when raging hordes of infected people swarm the building. Surrounded by these thirsty zombies, Michael and Harper have their hands full to survive - and it will take all of their ingenuity to make their way out to try and find Gabi.

The espionage thriller begins in 1997, as shocking news reaches retired Mossad secret agents Rachel (Helen Mirren) and Stefan (Tom Wilkinson) about their former colleague David (Ciarán Hinds). All three have been venerated for decades by their country because of the mission that they undertook back in 1966, when the trio (portrayed, respectively, by Jessica Chastain, Marton Csokas, and Sam Worthington) tracked down Nazi war criminal Vogel (Jesper Christensen) in East Berlin. At great risk, and at considerable personal cost, the team's mission was accomplished - or was it? The suspense builds in and across two different time periods, with startling action and surprising revelations.