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Appointment in Prague
Two theses, on which Doctor Petrie has based his reputation, are revealed as forgeries. He has been sponsored by Karl Dickinson, scientific benefactor, and Sir Iain suspects both men of not being what they seem.
Other episodes for this season
![Kingsmate](https://movie-intelligence.com/assets/images/noimageepisode.png)
![Target](https://movie-intelligence.com/assets/images/noimageepisode.png)
![A Walk with the Lions](https://movie-intelligence.com/assets/images/noimageepisode.png)
![One for the Lobster Pot](https://movie-intelligence.com/assets/images/noimageepisode.png)
![Come Home to Paradise](https://movie-intelligence.com/assets/images/noimageepisode.png)
![Warhead](https://movie-intelligence.com/assets/images/noimageepisode.png)
![The Big Plant](https://movie-intelligence.com/assets/images/noimageepisode.png)
![The Quickness of the Hand](https://movie-intelligence.com/assets/images/noimageepisode.png)
![Have a Word with Greco](https://movie-intelligence.com/assets/images/noimageepisode.png)
![The Alpha Men](https://movie-intelligence.com/assets/images/noimageepisode.png)
![Appointment in Prague](https://movie-intelligence.com/assets/images/noimageepisode.png)
![Opening Gambit](https://movie-intelligence.com/assets/images/noimageepisode.png)
![The Unbidden Guest](https://movie-intelligence.com/assets/images/noimageepisode.png)