The year is 1942 during the days of Japan's Pacific campaign of WWII. The British are evacuating Singapore when a ship is torpedoed and only four people survive. They are a nun, an RAF officer, a hate-filled business tycoon, and a black purser. The four drift for days before they find a small desert island. Before they reach the shore, a shark attacks and devours the purser. The other three safely land and struggle to survive. Under these circumstances, the RAF officer finds himself falling in love with the nun. Separated after their rescue, the officer searches her out to tell her what he couldn't when they were stranded.