Stan fears he may not be Hayley's real father, so he goes back in time to find the truth. In doing so, he disrupts the past and must save the future.

Stan's co-workers at the CIA teach him about "rubbernecking," the art of checking out other women on the sly, away from the gaze of their wives. But when Stan causes a massive accident in an attempt to take a picture of an attractive jogger, he's interviewed by an intimidating insurance inspector who may rat out Stan to Francine. Meanwhile, Roger and Klaus spill wine on the Smiths' brand new couch, and vow never to tell the other family members by sitting on the stained spot for the rest of their lives.