Four men attempt "The Knowledge" examination to qualify as London taxi drivers.
Mick Ford
as Chris Matthews
Kim Taylforth
as Janet
Nigel Hawthorne
as Mr Burgess
Michael Elphick
as Gordon Weller
David Ryall
as Titanic Walters
Jonathan Lynn
as Ted Margolies
Maureen Lipman
as Brenda Weller
Lesley Joseph
as Val
June Watson
as Lillian
Philippa Howell
as Mrs Staveley
Philippa Howell
as Mrs Stavely
Gary Holton
as Eddie Hairstyle
