Following a bet, four teenagers Ralph, Christine, Ruddy and Leila decide to go on a quest to get to the summit of Mount Macaya at 7200 feet high. As they were on their way, an old mage quickly intervenes and explains to them that there are mysterious disappearances of all those who tried to climb to the top of that mountain. He also goes on to tell them of an ancient legend dating back five hundred years called "The Legend of Quisqueya" serving as warning to the people of the town. Nonetheless, our young and stubborn adventurers proceed to go on their journey head on... Then hours later, despite fatigue and cold air, they finally manage to reach the summit. But before they could even celebrate as they were about to spike down their victory flag, the ground suddenly opens up from underneath their feet In screams of distress, they tumble down at great speeds to the center of the Earth where upon landing they surprisingly find themselves in a little corner of tropical paradise completely unknown and inhabited by native tribes. However, as all of this unfolds before them, will they be able to escape from the fate of the legend of Quisqueya? Will they be capable of freeing themselves from the Island beneath the sea?"