First broadcast 8th November 1976.
Gang boss Joe Castle dies, leaving his ill-gotten gains to long-lost son Steven, who has no criminal connections but seems willing to learn.
John Thaw - Regan
Dennis Waterman - Carter
Garfield Morgan - Haskins
Hywel Bennett - Steven Castle
Peter Dyneley - Pat Tarley
Sue Lloyd - Arleen Baker
Willoughby Goddard - Daniel Kitter
Maxwell Shaw - Colin Raleigh
Alan Tilvern - Charlie Walters
David Sterne - Ted Parkin
Gail Grainger - Jill
Geoffrey Todd - Phil Nairn
Jack Allen - The Vicar
Peter Brayham - Johnno Smith
Tony Allen - Bill the Driver
Willy Bowman - Joseph William Castle
Aidan Harrington - Flying Squad Officer
Bill Hemmings - Grave Digger
Stuart Myers - Stu - Flying Squad Officer
Eddie Powell - Thug
Mike Reynell - Flying Squad Officer
Peter Roy - Flying Squad Officer
Barry Summerford - Flying Squad Officer
Ron Watkins - Flying Squad Officer
Fred Wood - Grave Digger
