The plot revolves around Gramps Ford, an elderly patriarch who celebrates the prospect of the "Big Trip Up Yonder" — the euphemism for death. His family, living in cramped quarters and marked by competition and resentment, consists predominantly of youthful-looking individuals who have endured aging in an unusual manner due to anti-gerasone. As Gramps rewrites his will, tensions heighten, ultimately leading to a chaotic family battle after his death. The story critiques the implications of artificial longevity and the resulting conflicts within families as they grapple with the limitations of human existence and the absurdities that arise from their situation, culminating in a humorous and poignant conclusion. (This is an automatically generated summary.)