Homer attempts to claim a motorboat from a "police raffle" that turns out to be a sting operation. While returning home, the family passes a new mall being built on an area where a number of fossils were found. Lisa protests and the management allows Springfield Elementary to conduct an archaeological survey. During the excavations, Lisa finds a human skeleton with wings. Springfield's residents are convinced it is the remains of an angel, and Homer cashes in by moving the skeleton into the family's garage, charging visitors to see it.