The drugs section requests the ICAC to give a helping hand. The officers suspect that BOB the smuggler has bribed some officers and employed some air hostesses to carry drugs to Hong Kong. LIN and LAY pass the examination and they are instructed to work as spies. They are called JEN and ANGlE and move into Whampoa Sun Chuen. There they receive training and become air hostesses. They serve the route between Hong Kong and Vietnam. They become friends of MON and CHI. In a disco, they find that MON knows BOB. They tells MON that they are in financial difficulties. However MON arranges them to be prostitutes.