Aged nuclear physicist Professor Penmore is sent to prison for ten years for betraying rocket secrets to East Germany, but two people believe him innocent – his daughter Pat and his assistant Emma.
William Franklyn
Ian Lambart
Lana Morris
Emma Cresswell
Cyril Luckham
Det. Chief-Supt. Gage
Caroline Blakiston
Pat Penmore
Manning Wilson
Sergeant Rose
Patrick Troughton
Trev
Freda Bamford
Kitty
Christopher Barry
Director, Producer
Duncan Ross
Writer
Nov 23, 2020
Jun 30, 2022
Aug 27, 2025
Aug 28, 2025
Sep 11, 1960
Apr 7, 2021
Sep 18, 1964
Jan 30, 1977
BBC One
BBC
GB
United Kingdom
