<P> Once they arrive, they are greeted by Greg's eccentric but fun - loving and amiable father, Bernie (Hoffman), and mother, Roz (Streisand), who is a sex therapist for elderly couples . Concerned that Jack might be put off by the Focker's lifestyle, Greg convinces Roz to pretend that she is a yoga instructor for the weekend . However, small cracks begin to form between Jack and the Fockers, due to their contrasting personalities . The meet gets off to a bad start when a chase between the Focker's active dog, Moses (a brown Chihuahua with black trim), and the Byrnes's cat, Jinx, culminates with Jinx flushing Moses down the RV's toilet, forcing Bernie to destroy it to save Moses . Later, Bernie accidentally injures Jack's back during a game of football . </P> <P> Meanwhile, Pam informs Greg that she's pregnant, and the two decide to keep it secret from Jack . Jack again becomes suspicious of Greg's integrity and quality, when they are introduced to the Fockers' housekeeper, Isabel Villalobos (Alanna Ubach), with whom Bernie reveals Greg had a sexual affair fifteen years before . Jack later takes the RV to Isabel's 15 - year - old son, Jorge (Ray Santiago), to fix the toilet, but is disturbed by Jorge's striking resemblance to Greg, and the fact that Jorge never met his father, and jumps to the conclusion that he might be Greg's son with Isabel . Meanwhile, Roz, Bernie and Dina realize Pam is pregnant, but promise not to tell Jack . Growing envious of Bernie and Roz's active sex life, Dina consults Roz on sex tips in order to seduce Jack, but none of them work . </P> <P> Greg and Jack's relationship goes off with a bang when Greg is left alone to babysit Little Jack, whom Jack has been raising via the Ferber method . Despite Jack's instructions to leave Little Jack to self - soothe, Greg is unable to stand listening to Little Jack's cries and tends to the boy to cheer him up by hugging him, letting him watch TV, acting funny, and inadvertently teaching Little Jack the word "asshole ." Disaster strikes when Greg answers a brief phone call from Roz, which is long enough for Little Jack to wander out of his playpen (after being opened by Jinx), put on Scarface and glue his hands to a bottle of rum . After a furious argument with the Fockers and his own family (though amends are quickly made), Jack resumes his spying on Greg and sends Greg and Jorge's hair samples for a DNA test, while inviting Jorge to the Fockers' planned engagement party in the hope of getting Greg to admit he is Jorge's father . At the engagement party, Jack, who automatically assumes that Greg knew about Jorge and has deliberately been keeping him a secret from Pam, introduces Greg to Jorge . Later, when Greg denies knowing anything about Jorge, Jack still refuses to believe him and drugs him with truth serum to make him talk . On stage, Greg uncontrollably blurts out that Pam is pregnant and that Jorge is his son in a Darth Vader - esqe matter before immediately losing consciousness . </P> <P> The next morning, Pam questions Greg about Jorge, and Greg does not confirm or deny that he is Jorge's father, but insists that he knew nothing about him before the previous evening . Pam believes him, and is willing to work things out with him . Jack reaches his breaking point with Greg's dishonesty and demands that Pam and Dina leave the island with him . Dina refuses and reveals Jack's actions to everyone . Everyone turns against Jack, with Pam announcing her intent to marry Greg regardless of him having Jorge with Isabel, and Dina admits that they were all aware of Pam's pregnancy . A shocked and hurt Jack leaves with his grandson . </P>

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