"A Sentimental Journey" is the nineteenth episode of the popular 1969 ITC British television series Randall and Hopkirk (Deceased) starring Mike Pratt, Kenneth Cope and Annette Andre. The episode was first broadcast on 23 January 1970 on the ITV. Directed by Leslie Norman. In this episode Marty learns to search every hotel room in London quickly and is able to blow an entire small aircraft across the runway.

A reluctant Jeff agrees to take a valuable item worth £10,000 from Glasgow to London on the overnight express. When the consignment turns out to be an attractive blonde, Jeff initially concedes that the assignment is to his liking. However whilst on the train Randall becomes gradually suspicious that the girl was being held and is being traded although it seems curious to him that she appears to be very able to take care of herself. On the train Randall knows he is being watched and later that night the carriage of the girl is raided by one of the watchers. However it turns out that he is police officer sent to monitor them keeping in contact later

Randall delivers the girl in return for a receipt but learns that one of the bosses' henchmen is a traitor allowing the girl to escape, taking the receipt. Using Marty, he locates the girl in her London hotel room as Randall becomes increasingly suspicious. Whilst there he is overpowered by her boyfriend who turns out to be the disloyal henchmen and he discovers that what he was really after was a stolen an extremely rare and valuable postage stamp which was masked in the receipt by a newer stamp.

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