The Avengers
Season 1, Episode 20: Tunnel of Fear
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Top-secret information is finding its way into the wrong hands, and the source seems to be a south coast fairground. Steed succeeds in getting hypnotised and winds up in the ghost-train tunnel. With frightening results, of course.
All Episodes - Season 1
Episode 1
Hot Snow
Episode 2
Brought to Book
Episode 3
Square Root of Evil
Episode 4
Nightmare
Episode 5
Crescent Moon
Episode 6
Girl on the Trapeze
Episode 7
Diamond Cut Diamond
Episode 8
The Radioactive Man
Episode 9
Ashes of Roses
Episode 10
Hunt the Man Down
Episode 11
Please Don't Feed the Animals
Episode 12
Dance with Death
Episode 13
One for the Mortuary
Episode 14
The Springers
Episode 15
The Frighteners
Episode 16
The Yellow Needle
Episode 17
Death on the Slipway
Episode 18
Double Danger
Episode 19
Toy Trap
Episode 20
Tunnel of Fear
Episode 21
The Far Distant Dead
Episode 22
Kill the King
Episode 23
Dead of Winter
Episode 24
The Deadly Air
Episode 25
A Change of Bait
Episode 26
Dragonsfield