The whole gang are back and as close as ever. They decide to get even closer by spending the summer together at a beach house. They decide to hold the biggest party ever to be seen, even if the preparation doesn’t always go to plan. Especially when Stifler, Finch and Jim become more close to each other than they ever want to be and when Jim mistakes super glue for lubricant…

When Lenny and his wife, Amanda, adopt a baby, Lenny realizes that his son is a genius and becomes obsessed with finding the boy’s biological mother in hopes that she will be brilliant too. But when he learns that Max’s mother is Linda Ash, a kindhearted prostitute and porn star, Lenny is determined to reform her immoral lifestyle. A Greek chorus chimes in to relate the plot to Greek mythology in this quirky comedy.