Hostages of the SS (2015)

April 1945. In a dramatic operation the SS transports 139 special prisoners, and kin of the prisoners, into the Alps. The plan: to use the prisoners as bargaining chips in possible negotiations with the Allies. During the journey a number of prisoners plan their escape and experience six days between liberty and death, their fates in the hands of ruthless and increasingly nervous criminals. But the hostages band together and turn the tables with a clever ploy: they call in the Wehrmacht to aid them…

Unfortunately the movie Hostages of the SS is not yet available on HBO Max.