Heather comforts Oz, and they attempt to rekindle their relationship.
They are interrupted by Mia, who starts a fight with Heather. The adults and the teens erupt in a brawl on the front lawn, which is disrupted by police officers. Stifler finds Finch's arrest amusing while the others sympathize with Finch.
Oz is an NFL sportscaster living in Los Angeles with his supermodel girlfriend Mia (Katrina Bowden).
Kevin is married to Ellie and works from home as an architect.
That night, the guys and girls minus Michelle, go to the falls and find a high school party celebrating Kara's birthday.
Finch and Selena reconnect and realize how much they have in common, and they fall in love.
Jim and Michelle decide to role-play, but Kara tries to seduce him again. Stifler responds that they never contact him anymore and they didn't tell him they were coming to town.At the reunion, Finch admits that he is an assistant manager at Staples and stole the motorcycle from his boss when he did not receive a raise that was promised.The boys apologize to Stifler at his place of work, and insist that he is their friend; without him, high school would not have been any fun.Jessica reveals that she is a lesbian, and Sherman (Chris Owen) hooks up with Loni.Stifler is asked to be a party planner for a wedding for his former lacrosse teammates.Finch tells his friends that he has been traveling the world, and still searching for his one true love.Stifler works as a temp at an investment firm, where he is also the victim of cruel verbal abuse by his arrogant employer.Finch makes amends with Selena for lying, and they have sex in the bathroom which promises to lead to an ongoing relationship.Oz reunites with Heather, and Jim reconciles with Michelle.The others admit that they did not want him to ruin things like he always does. Mia leaves Oz, Stifler decides to skip the reunion, and Michelle goes to her grandmother's.When Jim tells his father about his disappointing sex life, Noah advises them to make time for each other.