Exhausted by the towering waves of the furious ocean, a shipwrecked mariner washes ashore on a deserted tropical island. There, a serene heaven on earth awaits him; the isle's sandy beaches, timid animal inhabitants, and a gracefully swaying bamboo forest are only some of its unseen wonders. That's all very well, but the tranquil haven isn't home. As the days turn into weeks, the marooned sailor contemplates escape, jaded by the islet's sun-kissed euphoria. Now, he only needs a small raft to flee the Eden-like prison. But as the seasoned seaman embarks on a perilous quest for liberty in the open sea, an indistinguishable adversary prevents him from leaving. And each day, the determined man tries to beat the odds. However, his increasingly sturdier and improved vessels are no match for the vast sea and its magnificent creatures. Who is the mysterious, heartless enemy thwarting the weary castaway's noble plans?