Set on an idyllic Greek island, the plot serves as a background for a wealth of ABBA hit songs. Donna, an independent, single mother who owns a small hotel on the island is about to let go of Sophie, the spirited young daughter she's raised alone. But Sophie has secretly invited three of her mother's ex-lovers in the hopes of finding her father.
Chuck, a top international manager for FedEx, and Kelly, a Ph.D. student, are in love and heading towards marriage. Then Chuck's plane to Malaysia ditches at sea during a terrible storm. He's the only survivor, and he washes up on a tiny island with nothing but some flotsam and jetsam from the aircraft's cargo. Can he survive in this tropical wasteland? Will he ever return to woman he loves?