This movie is a prequel movie to the movies "Meet The Parents", then "Meet The Parents". In this movie Gaylord Focker and Pamela Martha Focker have twins who are fixing to celebrate their 5th birthday. Greg is still employed as a male nurse much to the dismay of his father in law, who frequently pokes fun at the young Focker. Although recently diagnosed with a heart issue, he is still quiet spry and up to his spying ways as in the previous 2 moves.
As Pam's parents arrive into town, her father (Jack) feels as though Greg is up to no good. As a former spy he decides to do this own spy work and spys on Gaylord (also known as Greg) in his place of work. There, Jacks sees Greg speaking with a hot young drug rep who is making flirty gestures toward Greg. Greg is consistently turning down her advances but remains nice to her throughout the movie.
Upset with all the events occurring Greg runs away to his and his wife (Pam's) unfinished home. There the flirty drug rep shows up with some food and wine to cheer him up. She proceeds to drink to much and gets too flirty, tripped and falling onto Greg. All the while Jack is watching from afar and though that the 2 were having sexual relations of some sort.
Jack returns home, never mentioning anything as he does not want anyone to know he is spying. However later on in the movie an altercation takes place between Jack and Greg and Jack c "lets the cat out of the bag". Greg denies what took place and assures him that what he saw was not what was taking place. Jack falls over to the ground and it is perceived that it is from a heart issue. As he is being toted away, he feels Greg's artery and tells everyone that he believes he is telling the truth.