I Spy Crusade to Limbo (1965–1968) watch online HD

Among the acclaimed Americans who have joined a revolutionary political cabal in Mexico are a respected author and a movie actor acquaintance of Kelly's. To avoid a likely international incident, Kelly and Scott are assigned to infiltrate and oust from the organization's ranks all Americans.

The comic book Kelly is prominently pictured reading just before Sean Christie's telephone call is "Konga" No. 14 (June 1963). The Charlton Comics series was based on the British giant-ape film Konga (1961). In an interesting parallel to the episode's plot, the cover copy of the issue Kelly is reading states, "... Only Konga stood in the way of their 'MASTER PLAN.'"

Kelly and Scott meet Sean Christie atop the awe-inspiring Pyramid of the Sun at Teotihuacán near Mexico City. It is the third largest pyramid in the world.

The meeting at the end of the episode of Bill Cosby, Robert Culp, and Sheldon Leonard is a bit of an inside joke, as Leonard was the creator and executive producer of the show.