When a British agent is captured in a hostile Middle Eastern country, the government fear that his knowledge of the resistance movement there could place all its members in jeopardy. They call on Brady to rescue the agent from a tightly guarded military hospital. The second episode of the series sets the tone for many of the following entries, with Brady being called on to help someone in trouble. In this case, unlike some of the later episodes, they give Brady a convincing reason to get involved, and makes full use of his invisibility. One of the best episodes.