Name: Episode 4 — Nightmare
Released: 1961-01-28
Cast: Patrick Macnee, Linda Thorson, William Lucas

The Avengers (1961 – 1969)

1961 • 6 seasons • Action & Adventure, Crime • TV-14

8.3/10 9,852

77% 144

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On August 9, 2026

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Episode 4 — Nightmare

Released: 1961-01-28 • Action & Adventure/Crime/Sci-Fi & Fantasy

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Keel receives a 'phone call from one of his patients, and ends up assuming the identity of her missing husband, a scientist engaged in secret research. Shot in the chest, Keel needs a minor operation - but the anaesthetist has tampered with the oxygen.

Information

Creator	Sydney Newman
Episode air date	28.01.1961
Episode runtime	—
Episode rating	0.00
Genres	Action & Adventure / Crime / Sci-Fi & Fantasy
TMDB series rating	7.7
IMDb series rating	8.3
Series status	Ended
Age rating	14+
Country	GB

The Avengers (1961 – 1969)

Episode 4 — Nightmare

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