Elly-May is worried because she heard there was a Cat-Burglar on the loose. So she gathered up all her cats & took them inside the house. Later the Cat Burglar posing as a detective arrives at the Clampett's place pretending to secure it against burglars,but is really ""casing the joint."" Elly May sets some traps & catches the cat burglars assistant & Jethro catches Miss Jane. (Much to her delight !)