Based on the adventures of the hero Tex from the comic strip by Bonelli.
Tex Willer and his inseparable “pards” – Tiger, a Navajo Indian, and Ranger Carson – find themselves up against a tribe of vengeful Yaquis. Their leader, the mysterious Lord of the Deep, is armed with a deadly weapon – green stones of volcanic origin that kill and instantly mummify victims. The hunt takes Tex through earthquakes and explosions, into an underground cave full of seething magma… —raitrade.it
Italian director Duccio Tessari is best-remembered for directing average quality “spaghetti Westerns” and action-adventure films during the ‘60s. His credits include Una Pistola per Ringo (1968), Kiss Kiss… Bang Bang! (1966), Zorro (1974), and Beyond Justice (1991). Tessari started out as a director of documentaries. In addition to directing, he also worked on screenplays, notably Sergio Leone’s classic Per un Pugno di Dollari (1964). —Sandra Brennan