Buio oltre il sole was released in the year 1968。Buio oltre il sole is also called as The Mercenaries, Sista tåget från Katanga, Sidste tog fra Katanga, Palkkasoturit, Katanga, Dernier train du Katanga, Dark of the Sun, Último tren a Katanga。

A band of mercenaries led by Captain Curry travel through the Congo across deadly terrain, battling rival armies, to rescue $25 million in uncut diamonds.