Los Angeles cop Martin Riggs is brave and reckless, he literally walks in front of bullets without fear for his life. Family man Roger Murtaugh is older and more cautious. Two policemen, Vietnam veterans, investigate a case involving the suspicious suicide of a young woman. The thread of the search leads them to drug dealers, who also turn out to be Vietnam War veterans who have coalesced into a tight-knit criminal organization.

A year has passed since the first movie, all the heroes now study not in high school, but in college, and in the summer on vacation decide to rent a country house, where you can have fun, lie on the beach and chase girls, who are there in abundance. However, the problems will find each of the characters: Jim is going to come to the same "exchange student" Nadia, with whom he publicly screwed up in the first film, Kevin realized that just friends with Vicki he can not be, and Chris can not have sex on the phone with his friend Heather, who went to study in another city. To top it all off, Paul Finch started practicing tantric sex, counting the days until Mama Stifler arrived.