After a homecoming party for the husband of her ex-colleague Lissy, who has returned to Afghanistan, Ballauf and Schenk are called to the scene of the crime: the badly battered corpse of a young man was found in the bunker of an old military training area. His identity is quickly determined: According to the Frankfurt Airport Authority, Milad Rahimi (Reza Brojerdi) and his sister Amina (Maryam Zaree) had only traveled to Germany from Afghanistan two days ago. Amina's flight was paid for by the Pro-Afghanistan Foundation. But obviously the two were used here as body packers. The inspectors know that they have no time to lose: With the drugs in her body, Amina Rahimi's life is in great danger.
Lissy's husband Sebastian Brandt (Roeland Wiesnekker), who works as an interpreter for the Bundeswehr, has just arrived by plane from Afghanistan. Obviously, the mission in the Hindu Kush left deep marks on the otherwise fun-loving father. With his comrades.