This story is an incredible game of chess combined with a delicate puzzle.
After encountering an anomaly in the time vortex, the Doctor and Ace land in Germany in 1944, soon the two are captured and separated in the famous Colditz Castle, a Renaissance castle located in the eastern region of Germany that is being used as a World War II prisoner camp. Thus, Ace is imprisoned and needs to find a way to escape from the Castle as well as having to deal with the disgusting Nazi soldier "Kurtz" - Meanwhile, the Doctor is interrogated by a mysterious woman named "Elizabeth Klein" who apparently knows a lot about the Time Lord, his TARDIS, and understands quite a bit about time travel.
The script by Steve Lyons borders on perfection, his narrative captures you every minute and with each block, I found myself several times losing track of time so engrossed was I by the story. I loved the way the 7th Doctor was written, he literally gets into the minds of his opponents with several manipulative moments and with his great speeches that are a typical hallmark of the Time Lord. All the performances are of great quality, Sylvester and Sophie need not be mentioned, always great - its guest cast is very strong, Tracey Childs as the mysterious "Klein" and David Tennant as "Kurtz" a Nazi soldier, both delivering a PHENOMENAL performance.
In summary, so far this is being the best 7th Doctor audio I've listened to on this journey. Without a doubt "Colditz" is a not-to-be-missed audio!
(Translation generated by AI, so mistakes are possible).