Feature version of the 1943 Republic serial "Secret Service in Darkest Africa," edited and released to television as part of a syndication package in 1966.Feature version of the 1943 Republic serial "Secret Service in Darkest Africa," edited and released to television as part of a syndication package in 1966.Feature version of the 1943 Republic serial "Secret Service in Darkest Africa," edited and released to television as part of a syndication package in 1966.