The Tunnel of Fear: Avengers (TV Episode)

Plot

Keel discovers that vital government secrets are being smuggled out of a seedy funhouse at Southend. Taking a job at the funhouse, Steed is captured and placed aboard The Ghost Train, the method of transportation used by the enemy. As Keel rushes to Steed's rescue, the latter calmly manages to hoodwink his captors by utilizing a bogus "secret weapon." First broadcast August 5, 1961, "Tunnel of Fear" was written by John Kruse. ~ Hal Erickson, Rovi