A valuable necklace is stolen from a rich woman. Sammie, the butler, offers a necklace to the maid so suspicion points to him. The rich woman notifies the police. Sammie and the maid have an afternoon off and they go to the park. Sammie offers the necklace again; the maid is about to accept it, when she sees it bears the tag of a 5 and 10 cent store and she scornfully returns it to him. The real crook looks for a place in his room to hide the necklace, but cannot find one. He catches sight of the dog and puts the jewe1s in its collar. Sammie comes across a girl weeping at the grave of Fido. A little girl appears with a dog. The dog-catchers' wagon also appears; they attempt to take a bulldog, but don't succeed. The crook goes to the station with his dog and ties it outside. Someone unties the dog, which runs away with the necklace still in its collar. Everyone seems to have lost a dog, and a chase ensues. Sammie decides to buy one for the girl who is mourning Fido's loss, and goes to a dog store. He gets a big one and manages to upset several policemen and pedestrians with it. The dog catchers are so determined to arrest all dogs, that they even attempt to arrest a statue of one, which is broken in the scuffle. Soon everyone is hunting for a dog. After a terrific chase in which the police join, the whole party falls over a cliff, tangled in the remains of the dog catchers' wagon and the police automobile.
—Moving Picture World synopsis
