Finding himself in a lift with the heavily pregnant Gretchen Homer delivers her baby son, whom she names Homer Junior out of gratitude. Homer regularly visits the child, taking clothes and food, causing Marge to believe he is having an affair. When she learns the truth she allows Homer to see the baby but on a family visit to the zoo his attention to Homer Junior puts Maggie in danger, as a result of which Marge makes him give up the visits - though he finds the baby's father has returned, Meanwhile Lisa helps the cheer-leaders for the Springfield Atoms organize themselves to get better pay and conditions.
—don @ minifie-1