Agent DiGiacomo and Undercover Agent M have a difficult case to solve. Beginning with a report of an emaciated dog, they discover a dead dog and another dog with what looks like a burn on its back. The owners of both dogs say the dead dog had eaten a poisoned rat, and they claim they have only just seen the burn. Both animals are taken back to the ASPCA for tests, along with a puppy the agents are concerned about. Further investigations and medical tests reveal that the dog died from starvation rather than poisoning, and that the burn was at least two days old.