1. Strays

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. 7 February 1973. 50 min

Barlow must find a young girl who has disappeared from London Airport.

2. Wanted

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. 14 February 1973. 50 min

Fishing for a villain in Amsterdam, Barlow searches for the appropriate bait.

3. Review

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. 21 February 1973. 50 min

Eddie Doyle is serving a life sentence for murder, but friends in The Potteries think the police may have moved too fast.

4. Publicity

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. 28 February 1973. 50 min

A girl has been murdered in the West Country, and routine methods have failed to find her killer. What's needed is something different...

5. Wheelbarrows

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. 7 March 1973. 50 min

Barlow investigates a racket using car ferries to export stolen vehicles.

6. Informant

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. 14 March 1973. 50 min

When a voice from the past brings Barlow information about a crime, he has to balance his new responsibilities at the Home Office against his detective's judgment.

7. Trespass

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. 21 March 1973. 50 min

The policeman look and sound British. But when Barlow follows the trail of a city swindler as far as Rhodesia, he finds them surprisingly unfriendly.

8. Assessor

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. 28 March 1973. 50 min

Barlow finds that Signor Rizzi is interested in something more sinister then good trade relations.

9. Treasure

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. 4 April 1973. 50 min

The Rock of Gibraltar proves stony ground when Barlow and Rees start 'digging' for treasure. Their hunt for £750,000 worth of stolen and forged securities leads them to all the Rock's attractions - and one of the attractions leads Rees into temptation.

10. Confidence

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. 11 April 1973. 50 min

Barlow's relationship with Fenton is never easy - and it is stretched to the limit when Fenton receives and extraordinary confession.