The DEVIL'S SWORD lies hidden in a secret cave inside Devils Mountain, everything evil will fight to the death for it... "For whoever possesses the sword, will rule the kingdom!" Four warriors attack the keeper of the mountain and try to force him to hand over the map that will lead them to the sword. The tortured keeper escapes and runs to MANDALA his master, who after hearing of the attempt, sets off on his own journey to save the DEVIL'S SWORD. He has many blood-curdling battles along the way, he is attacked by the evil crocodile men and encounters many fiendish traps set for intruders entering the mountain. At last MANDALA captures his prize - can he call upon the Gods and use the mystical sword against the raging warriors with their awesome magical power? Will he win the fight with the crocodile queen who craves the DEVIL'S SWORD at any cost?

In his wanderings, Mandala (Barry Prima) arrives in a village where a triad of Iron Heads are messing with him. They are looking for Laot (Syaiful Nazar) who saved the book left by his teacher, Ki Banta (Syamsuri Kaempuan) who the three Iron Heads are looking for. At the same time, Mandala also eradicates village robbers and sees Kupra (Syaiful Nazar), who is about to be hanged, because he is considered a robber. Kupra is saved by Mandala, but then they split up.

Two warring kingdoms; Jawadwipa, led by Mandala (Barry Prima) with help from his "demon sword," and Mongolia, led by Ramis Khan (Advent Bangun) and his sister Valas (Yurike Prastica), battle it out in this fantasy adventure.