Episode 53 - The Ambassadors of Death

A manned space reconnaissance probe is on its way back to Earth after having been out of contact for several months. Just what happened to the crew of the shuttle and what is the secret behind the coded messages they are sending back to Space Control. This week Paddy and Tricia follow The Doctor and his allies in a race against the clock as they face off against a sinister conspiracy that is stopping them from uncovering the mystery of The Ambassadors of Death.