Zany foursome Errol (Christopher de Leon), Herman (Jay Ilagan), Tacio (Johhny Delgado), and Peewee (Edgar Mortiz) merely geared up for a short underwater dive towards Hundred Islands when a series of miscalculations cause them to resurface on the shores of Mexico. As they try to reorient themselves for their homebound dive, a dying man entrusts them with a battered sombrero whi...