In realising their scheme to rule the underworld, the Poisonous Snake Gang breeds the 'Blue Poisonous Bees' and sends Red Rose over to the blue-clad Flying Dragon Gang to execute the 'Flying Sting' mission. Shadowed by the competent fighter Lung King-tin, Ma Tung-choi demands that the newcomer obtain the nuclear pistol from Poisonous Snake to prove her loyalty. Anna Tai of the Female Monster Gang intercepts the two and makes them yield the pistol before locking them up. Upon Lung's heroic rescue, Rose shifts loyalty to Flying Dragon but the Poisonous Snake spies strike, abducting the three to a garage where a brawl breaks out. Armed with the pistol, Anna frees the captives. She bestows the pistol on Flying Dragon as a token of goodwill, putting behind her unrequited love for Ma who loves only Rose. Poisonous Snake launches a raid on Flying Dragon only to be wiped out by the deadly bees that they breed but fail to contain.