A young Indian , lousily played by Mark Gregory, turns into a one army man when he is mistreated , as Thunder is determined to punish the local cops who are abusing his fellow tribe members .As a tough Native American is provoked to violence and then seeking a relentless vengeance . Mark is a young Indian called Thunder , he is a peaceful native whose quiet character is trigged by cutthroats , wrongful arrests, and injustices against his race . The Indian Thunder has vowed to live in peace and order but forswears the oath when his girlfriend is kidnapped and relatives are terrorized . Mark Gregory escapes into the Arizona mountains and leads his pursuers to all manner of lethal ends . Finally , an army of cops led by Bo Svenson , Raymond Harmstorf and other deputies are summoned to crush him .He is on the warpaths and he is gonna blow your town apart . They gave him hate , he gave them hell.
The picture deals with usual theme in Italian cinema of the 60s and 70s : a merciless vendetta . As revenge is the top priority , as the protagonist tormenting and reckoning the bad guys . Extremely violent and frequently confused, fueled on the revenge and no much concerned with the rules of plot realism . This is a rip-off to First Blood by Ted Kotcheff with Stallone that was followed by Rambo and sequels . Wooden acting by Mark Gregory as a two-fisted native American submitted to mistreats and prejudices, at the end he seeks vengance driving a caterpillar tractor against the nasties . He is accompanied by a motley group of secondaries as the American Bo Svenson , the German Raymond Harmstorf and a motley team of support cast who played a lot of genres in the sixties and seventies as Western , Peplum and Giallo, such as Paolo Malco , Nazzareno Zamperla , Bruno Corazzari, Goffredo Unger and Antonio Sábato. This Thunder had success in Italy , getting a boxoffice hit , being followed by 2 sequels also directed by Fabrizio de Angelis . As Thunder warrior II 1985 with Mark Gregory , Bo Svenson and Thunder warrior III 1988 with Mark Gregory , Ingrid Lawrence, John Philip Law , and Werner Pochath.
It contains spectacular outdoors photographed by Sergio Salvati , from Marble Canyon , Monumental Valley , Village of Oak Creek , Sedonia , and Navajo villages in Arizona . However , copy of the film is worn-out , being necessary a perfect remastering . Special mention for musical score , well composed by the prolific Francesco De Massi . The picture was regular , though professionally directed , by Fabrizio de Angelis who often used the pseudonym Larry Ludman . He has produced and directed a lot of B films of all kinds of genres , adventure , terror , and Wartime especially . As he has directed movies as Manhunt , Operation Nam , Deadly impact, Overthrow , being particularly known for the Karate Kimura series .