The Avengers
Season 4 Episode 5 - Castle De'ath
Why have all the fish vanished from the Scottish coastline? Does it have anything to do with a dead frogman, found stretched as if on a rack? Steed and Emma think so, which is why they're guests of Ian, the 35th Laird of Clan De'ath, and in danger of being caught by the gillies.
Episodes in Season 4
The Town of No Return
The Gravediggers
The Cybernauts
Death at Bargain Prices
Castle De'ath
The Master Minds
The Murder Market
60 min
A Surfeit of H2O
50 min
The Hour that Never Was
Dial a Deadly Number
Man-Eater of Surrey Green
60 min
Two's a Crowd
Too Many Christmas Trees
Silent Dust
Room Without a View
Small Game For Big Hunters
The Girl From Auntie
49 min
The Thirteenth Hole
60 min
Quick-Quick Slow Death
The Danger Makers
A Touch of Brimstone
What the Butler Saw
The House That Jack Built
A Sense of History
How to Succeed... at Murder
60 min