Sergeant on the Run

"Sergeant on the Run " is the second episode of the  first series  of  Secret Army.

Plot
While Albert and Lisa continue to worry about Curtis, Lifeline is tested attempting to help some more evaders. The Germans capture one of them, Sergeant Walker, who has previous knowledge of Lifeline. He makes a desperate bid for freedom to avoid talking, by throwing himself down a staircase at Gestapo HQ. Walker recovers in hospital in the company of an undercover German officer. Prompted by the doctor, he escapes from the surgery, and is hunted by both the Germans and Lifeline. He is found and killed by Albert, to avoid him talking and because he is too infirm for the escape line.