Hanna and Erik are finally reunited in Berlin, where he introduces her to his old army friends and allies. As they hide out in a disused military bunker, planning their next step, Hanna begins to learn more about her father's past. However, having glimpsed a normal family life with Sophie, she becomes increasingly frustrated at her own and at the restrictions Erik imposes on her. Meanwhile, having tracked them down to Berlin with the help of Jacobs, Marissa and her CIA colleague Meisner arrive in the city. They begin to delve into Erik's past, seeking old connections ...