Crooks in a remote castle use a recording of a woman screaming for help to lure unwary sailors into leaving their boats and trying to rescue her. Porky and Cicero fall for the scheme and the crooks take their boat and dump them into the castle dungeon.
While in Venice, Italy, to write a travel article, Porky's suitcase gets switched with that of a dealer in valuable postage stamps. Two crooks pull a switch on Porky, who ends up with a suitcase full of clothes. With the help of a friendly dog, Porky and Cicero are able to track down the crooks.
Petunia leaves her prize tomato plant with Porky while she's at her aunt's. Porky accidently spills the special plant food Petunia left and when he mixes up some on his own, he ends up with a tomato the size of a bowling ball.