Colditz rewatch 1x10, "Tweedledum"

This episode focuses on RAF Wing Commander George Marsh, whom we first see helping the doctor in the infirmary. He devises a plan to escape by faking mental illness in order to be repatriated, and says he will draw on his experience working in an asylum while he was a university student. The plan is reluctantly approved by Pat, the doctor, Preston, and Simon Carter, who are the only people aware that Marsh's "schizoid psychosis" wil be feigned. Marsh is warned that he will have to keep up the act constantly for as long as six months or a year before the Swiss protecting power will be able to repatriate him, and that he can't give up once he's begun because it would ruin the chances of any genuinely mentally ill prisoner being repatriated.

( More under the cut. )

Note: As always, spoilers for future episodes are likely to occur in the comments.