T.H.U.M.B. - Acronym for the Tiny Human Underground Military Bureau, a secret organization on the animated cartoon series TOM OF T.H.U.M.B., a component series on THE KING KONG SHOW/ABC/1966-69.

Tom and The Chief of US Intelligence

Tom, a janitor for the US Intelligence Maintenance Department and his Asian friend Swinging Jack, master of karate, were caught in the rays of a shrinking laser radar beam that reduced both of them to the size of Lilliputians. "They gave their height for their country, thus creating the Tiny Human Underground Military Bureau."

Tom, a janitor for the US Intelligence Department

Swinging Jack and Tom accidentally activate shrinking ray

Ray Shrinks Tom and Swinging Jack

The Chief opens Tom's file cabinet drawer

Tom lived in the office filing cabinet and reported to Chief Homer J. Chief.. T.H.U.M.B.'s chief nemesis was M.A.D. (Maladjusted, Antisocial and Darn Mean), a evil organization of sinister scientists.

This Saturday morning cartoon was a cross between James Bond and Gulliver's Travels.