The city girls include: Royal American ( Kathy Uyen ), Tuyet Dung ( Thuy Nga ) and Ngoc Vy ( Hoang Oanh ) bumped into each other while sitting together boat. Each of her own purpose for the trip, but they decided to make friends to enjoy the happy moments in the isle. After a night of partying "drop door ", the three wake up in the boat with the ragged shape and clean forget what happened to me the day before. Trip down " what has happened " about their group's fall resulted in itinerary are gangsters chase group.