Secret Army - Season 1 - Eps 12: Hymn To Freedom
Lifeline once again must tread carefully when one of their safehouses is blown. Meanwhile, Van Reijn, a minister in the puppet Belgian government, wants to defect to England and contacts Curtis. Curtis tries to persuade Lisa to let Van Reijn be sent down the line, citing the propaganda value of such a defection. However, matters become complicated, as Lifeline has once more been secretly infiltrated by a German officer.
About Secret Army

Title: Secret Army
First Air Date: 1977-09-07
Last Air Date: 1979-12-22
Status: Ended
Rating: 7.455/10 (from 11 votes)
Language: EN
Seasons: 4
Total Episodes: 43
Network: BBC One
Genres: Drama, War & Politics
Production Companies: BBC, Belgische Radio en Televisie
Synopsis
World War II drama about covert organisation Lifeline helping allied airmen escape after being shot down in occupied Europe, working with the Resistance and hiding from the Gestapo.
Cast

Bernard Hepton
Albert Foiret

Angela Richards
Monique Duchamps

Clifford Rose
Sturmbannführer Ludwig Kessler

Juliet Hammond-Hill
Natalie Chantrens