Four Against the Desert on AllMovie

Some sources list Four Against the Desert as a 1979 release. Hal Frederick, Karin Dor and Ron Hayes head the cast, indicating that this obscure actioner was a Euro-American coproduction. The "four" of the title are ecologists, working in the Sahara. Fending off various despoilers, the Four attempt to help a nomadic tribe. It's a toss-up as to what represents the biggest threat: the human villains, or the many natural hazards facing Our Heroes in the desert wastes.