Now that Greg Focker is "in" with his soon-to-be in-laws, Jack and Dina Byrnes, it looks like smooth sailing for him and his fiancée, Pam. But that''s before Pam''s parents meet Greg''s parents, Bernie and Roz Focker. The hyper-relaxed Fockers and the tightly-wound Byrneses are woefully mismatched from the start, and no matter how hard Greg and Pam try, there is just no bringing their families together.