The Night Shift team is investigating the murder of a police inspector. Shots had been fired at the Polish border and a colleague was killed. Eyewitnesses mention a camper and foreigners, probably refugees from Africa; later, the vehicle is found in a Hamburg garage. At a refugee center, Lisa Brenner meets the frightened Syrian Odile who made it to the home, but whose dead body is found the next day. Then Lisa herself is caught in the crosshairs of an internal investigation...