TV The Avengers - Season 1 Episode 24 : The Deadly Air The Avengers - Season 1 Episode 24 : The Deadly Air 7.712/10 by 146 users An experimental vaccine is stolen, and the subsequent test proves deadly. Steed and Keel, suspecting that the human 'guinea pig' did not die directly from the vaccine, volunteer to be the next subjects. Details Casts Posters Images Title The Avengers - Season 1 Episode 24 : The Deadly Air Alternative Titles Avengers, Οι Εκδικητές First Air Date 1961-01-07 Last Air Date 1969-05-21 Number of Episodes 161 Number of Seasons 6 Genres Action & Adventure, Crime, Sci-Fi & Fantasy, Networks ITV1, Casts Patrick Macnee, Linda Thorson, William Lucas Plot Keywords , John Steed Patrick Macnee Tara King Linda Thorson William Lucas Episodes List The Avengers Season 1 :Episode 1 Hot Snow Hot Snow 1961-01-07 A quirky spy show of the adventures of eccentrically suave British Agent John Steed and his predominantly female partners. Jonathan Steed - an... The Avengers Season 1 :Episode 2 Brought to Book Brought to Book 1961-01-14 A quirky spy show of the adventures of eccentrically suave British Agent John Steed and his predominantly female partners. Jonathan Steed - an... The Avengers Season 1 :Episode 3 Square Root of Evil Square Root of Evil 1961-01-21 A quirky spy show of the adventures of eccentrically suave British Agent John Steed and his predominantly female partners. Jonathan Steed - an... The Avengers Season 1 :Episode 4 Nightmare Nightmare 1961-01-28 A quirky spy show of the adventures of eccentrically suave British Agent John Steed and his predominantly female partners. Jonathan Steed - an... The Avengers Season 1 :Episode 5 Crescent Moon Crescent Moon 1961-02-04 A quirky spy show of the adventures of eccentrically suave British Agent John Steed and his predominantly female partners. Jonathan Steed - an... The Avengers Season 1 :Episode 6 Girl on the Trapeze Girl on the Trapeze 1961-02-11 A quirky spy show of the adventures of eccentrically suave British Agent John Steed and his predominantly female partners. Jonathan Steed - an... The Avengers Season 1 :Episode 7 Diamond Cut Diamond Diamond Cut Diamond 1961-02-18 A quirky spy show of the adventures of eccentrically suave British Agent John Steed and his predominantly female partners. Jonathan Steed - an... The Avengers Season 1 :Episode 8 The Radioactive Man The Radioactive Man 1961-02-25 A quirky spy show of the adventures of eccentrically suave British Agent John Steed and his predominantly female partners. Jonathan Steed - an... The Avengers Season 1 :Episode 9 Ashes of Roses Ashes of Roses 1961-03-04 A quirky spy show of the adventures of eccentrically suave British Agent John Steed and his predominantly female partners. Jonathan Steed - an... The Avengers Season 1 :Episode 10 Hunt the Man Down Hunt the Man Down 1961-03-18 A quirky spy show of the adventures of eccentrically suave British Agent John Steed and his predominantly female partners. Jonathan Steed - an... The Avengers Season 1 :Episode 11 Please Don't Feed the Animals Please Don't Feed the Animals 1961-04-01 A quirky spy show of the adventures of eccentrically suave British Agent John Steed and his predominantly female partners. Jonathan Steed - an... The Avengers Season 1 :Episode 12 Dance with Death Dance with Death 1961-04-15 A quirky spy show of the adventures of eccentrically suave British Agent John Steed and his predominantly female partners. Jonathan Steed - an... The Avengers Season 1 :Episode 13 One for the Mortuary One for the Mortuary 1961-04-29 A quirky spy show of the adventures of eccentrically suave British Agent John Steed and his predominantly female partners. Jonathan Steed - an... The Avengers Season 1 :Episode 14 The Springers The Springers 1961-05-13 A quirky spy show of the adventures of eccentrically suave British Agent John Steed and his predominantly female partners. Jonathan Steed - an... The Avengers Season 1 :Episode 15 The Frighteners The Frighteners 1961-05-27 A quirky spy show of the adventures of eccentrically suave British Agent John Steed and his predominantly female partners. Jonathan Steed - an... The Avengers Season 1 :Episode 16 The Yellow Needle The Yellow Needle 1961-06-10 A quirky spy show of the adventures of eccentrically suave British Agent John Steed and his predominantly female partners. Jonathan Steed - an... The Avengers Season 1 :Episode 17 Death on the Slipway Death on the Slipway 1961-06-24 A quirky spy show of the adventures of eccentrically suave British Agent John Steed and his predominantly female partners. Jonathan Steed - an... The Avengers Season 1 :Episode 18 Double Danger Double Danger 1961-07-08 A quirky spy show of the adventures of eccentrically suave British Agent John Steed and his predominantly female partners. Jonathan Steed - an... The Avengers Season 1 :Episode 19 Toy Trap Toy Trap 1961-07-22 A quirky spy show of the adventures of eccentrically suave British Agent John Steed and his predominantly female partners. Jonathan Steed - an... The Avengers Season 1 :Episode 20 Tunnel of Fear Tunnel of Fear 1961-08-05 A quirky spy show of the adventures of eccentrically suave British Agent John Steed and his predominantly female partners. Jonathan Steed - an... The Avengers Season 1 :Episode 21 The Far Distant Dead The Far Distant Dead 1961-08-19 A quirky spy show of the adventures of eccentrically suave British Agent John Steed and his predominantly female partners. Jonathan Steed - an... The Avengers Season 1 :Episode 22 Kill the King Kill the King 1961-09-02 A quirky spy show of the adventures of eccentrically suave British Agent John Steed and his predominantly female partners. Jonathan Steed - an... The Avengers Season 1 :Episode 23 Dead of Winter Dead of Winter 1961-12-09 A quirky spy show of the adventures of eccentrically suave British Agent John Steed and his predominantly female partners. Jonathan Steed - an... The Avengers Season 1 :Episode 24 The Deadly Air The Deadly Air 1961-12-16 A quirky spy show of the adventures of eccentrically suave British Agent John Steed and his predominantly female partners. Jonathan Steed - an... The Avengers Season 1 :Episode 25 A Change of Bait A Change of Bait 1961-12-23 A quirky spy show of the adventures of eccentrically suave British Agent John Steed and his predominantly female partners. Jonathan Steed - an... The Avengers Season 1 :Episode 26 Dragonsfield Dragonsfield 1961-12-30 A quirky spy show of the adventures of eccentrically suave British Agent John Steed and his predominantly female partners. Jonathan Steed - an...