 The Simpsons are in their backyard having a barbecue when they are abducted by extraterrestrial life forms (specifically Kang and Kodos).The aliens explain that they are taking the Simpsons to their home planet on Rigel IV, "a world of infinite delights", for a feast.En route they present the family with enormous amounts of food and watch eagerly as they gorge themselves, then check their weights, being particularly delighted at Homer's mass.