Marge's rage against the new toll road system somehow leads to the discovery of a frozen mailman and his 40-year-old mail. The letters are returned to the rightful recipients, including one to Grandpa Simpson's deceased wife, revealing a secret love affair and the real father of her baby, Homer. Confused and emotional, Homer finds Mason Fairbanks, his wealthy and much improved paternal dad, and happily establishes a father-son relationship with him while rejecting his surrogate father of 40 years. But soon Homer realizes that a DNA test doesn't necessarily tell who his true father is. Blackboard 'I am not smarter than the president'.
Guest Cast
Tress MacNeille
voices Agnes Skinner
Cast Appearances
Dan Castellaneta
voices Homer Simpson
Julie Kavner
voices Marge Simpson
Nancy Cartwright
voices Bart Simpson
Yeardley Smith
voices Lisa Simpson
Dan Castellaneta
voices Abraham Simpson
Dan Castellaneta
voices Sideshow Mel
Dan Castellaneta
voices Mayor Quimby
Hank Azaria
voices Moe Szyslak
Hank Azaria
voices Carl CarlsonEpisode Discussion
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