Ryder, an ex-policeman, who resigned for mysterious reasons, must make a lot of money, very quickly…

No-One Wants Any Trouble
BBC
Season 1 Episode 2
Episode aired 12 March 1975
Assault
BBC
Season 1 Episode 5
Episode aired 2 April 1975
Ryder wants some assistance.
Contract to Kill
BBC
Season 1 Episode 6
Episode aired 9 April 1975
Ryder is in some danger.