Gil tries to salvage Jake's bachelor party when the arrangements go awry. Annie discovers Jake's mum has been flirting with a guy online so she tries to engineer a face-to-face meeting between them.
Gil is persuaded to do whatever it takes to win a wedding cake making contest. The unexpected return of Annie's biological mother Pam, the egg donor used by her two dads, creates family tension.
Annie hears that her ex-boyfriend Lee is in a coma and realises he will never find out she's engaged to somebody else. Kay sends heartfelt final messages to the gang when turbulence hits her flight.
Annie discovers that she was born in Canada and is not a US citizen. As her family and friends help her to revise for a citizenship test, Jake takes over responsibility for planning their wedding.