I Deal in Danger is a 1966 American DeLuxe Color spy film compiled from the first four episodes of a television series, Blue Light, which aired on ABC-TV in early 1966.

[2][4] Directed by Walter Grauman, it starred Robert Goulet as David March, an Allied spy in Nazi Germany during World War II.

Elm fosters a plan to expose March by taking him to Spain to meet with a British scientist, Guy Spauling (Donald Harron), who wants to defect to Germany.

March's goal becomes the destruction of secret Nazi weapons factory, which produces missiles for U-boats.

He has romantic interludes with a German scientist, Gretchen Hoffmann (Eva Pflug), working at the missile factory, convincing her to assist in his plans to blow up the facility.