On 20 July 1966, the Doctor and Jamie McCrimmon found him in the hangar of Gatwick Airport when they were searching for the TARDIS. As part of Waterfield's plan, Bob pretended to show reluctance to answer the Doctor's questions. When he later left the hangar, he was unaware they were following him. When he met up with Kennedy, he refused to get involved in kidnapping, so Kennedy knocked him unconscious.
The Doctor and Jamie found him, and while they were looking for the clues that were planted for them, Bob recovered consciousness and fled the scene. (TV: The Evil of the Daleks) He vacated the flat he had been staying in and headed north out of London in his Ford Popular with the money he had been given. (PROSE: The Evil of the Daleks)