Series 11

1. The Man Who Killed Songbirds

Young Colin's route home from school lies across a grubby parkland. Hiding in the bushes is a man with sweets... and a knife.

1977-04-05 • 50 min

2. Rage

It's not like Arthur Scarsdale to be violent. He's normally a peaceful little villain, but in the Newtown nick it takes three policemen to hold him down - and all Bowker did was offer him a cup of tea.

1977-04-12 • 50 min

3. Guilt

Quilley was at school with Chris Murray and knows he wouldn't hurt a soul. So when Chris half murders a man and pleads guilty Quilley wants to know why.

1977-04-19 • 50 min

4. Transit

Crime Squad from Cardiff want Inspector Moffat to lodge a prisoner overnight in the Newtown cells - and no-one must know about it. But someone has to know, even if it's only another policeman.

1977-04-26 • 50 min

5. Error Of Judgement

Lorry hi-jacks: too many, too well-planned and executed. Braithwaite goes 'under cover' as a lorry driver with a shady past. He's out in the cold - and vulnerable.

1977-05-03 • 50 min

6. Scavengers

Digging a deep hole in the sand by the light of the moon isn't the sort of behaviour you'd expect from a debt collector. Not even such a strange one as Clarrie Enwright.

1977-05-10 • 50 min

7. Fall Of Wiskers Castle

It's his first day as a sergeant and Alec Quilley's hung over. It's his first job as a sergeant, and it requires a bit of gentle persuasion. But how can you be gently persuasive to a double-barrelled sawn-off shotgun?

1977-05-17 • 50 min

8. Rip Off

DC Bowker and Jack Crawford have met before. Their relationship is very simple: one way or another Bowker is going to nail Crawford, unless Crawford can nail Bowker first.

1977-05-24 • 50 min

9. Quarry

1977-05-31 • 50 min

10. Attack

Coppers are fair game and copper-baiting is a good sport - unless the copper you pick on happens to be an expert in unarmed combat. In that case the game's called mayhem.

1977-06-14 • 50 min

11. Skeletons

Excavating for a swimming pool a young couple come across an old trunk buried in their garden. For the police it means old files, old memories and old wounds must all be re-opened.

1977-06-21 • 50 min

12. Domestic

Unlike his brother Terry, who's just a flat-footed scuffer, Graham Moffat is all set to wheeler-dealer his way into big business. Trouble is - the way it looks to Terry - brother Graham is all set to wheeler-dealer his way into crime.

1977-06-28 • 50 min

13. Juvenile

1977-07-05 • 50 min