Turtle's Progress is a British television series broadcast between 1979 and 1980. The offbeat humour of the show attracted a small but cult audience, and the show only ran for two series.
The pair find they need the help of more than their accountant when they are investigated by the Inland Revenue. Supt. Rafferty, meanwhile, is under mounting pressure to track down a particular deposit box - one belonging to the Comissioner's brother, Sir James Brent.