
The prisoners can now see battle activity from the upper reaches of the castle, but there is strong SS resistance and Colditz comes under attack. Phil Carrington makes a break for American lines, but the situation is very confused and there are many obstacles to pass before Colditz can be truly liberated.
A new second-in-command is appointed to Colditz, but Major Mohn – a distinguished and much decorated soldier is determined to continue fight the war inside Colditz and Simon Carter whose broken ankle is not mending is prepared to meet him head on, but a psychological battle between them has consequences for the Kommandant and Colonel Preston, who is forced to appoint a new escape officer.
Simon gets an idea to hide prisoners to effect a dummy escape which would then take pressure off any genuine escape, but Major Mohn is highly suspicious and starts to impose further restrictions on the prisoners and this impacts Simon's plan and puts the lives of 2 men in danger.