 In the mysterious world of Mataram, two warrior brothers, Batara and Mega, are chosen by the princess Sari to guard the Water Palace, home to a weapon of tremendous power. As Mega and Batara arrive on their flying stallions, Sari sends the mighty Green Knight to test their prowess in battle. While Mega meditates within an ancient cave, Batara defeats the Green Knight. After their meditation is complete, Batara s spirit is transported to the Water Palace, deep beneath the ocean. Again he is tested with an onslaught of mighty warriors, but he overcomes them all. When Batara and Sari meet, Sari is immediately enchanted, and the two fall in love. Sari entrusts the power of the temple s magic sword to Batara, bidding him to protect the kingdom of Mataram. After emerging, however, Mega is jealous of Batara s new weapon and steals it from him. The two brothers engage in an epic duel, each vying for the power of the sword. In the end, Batara triumphs, but his love for his brother prevents him from slaying him. Batara bids Mega leave with the sword and do as he wishes. Touched by his brother s words, Mega relinquishes the sword and sets off on a journey to hone his body and spirit.