Porky figures out that by picking up people's stuff he can get enough change to buy ice-cream sodas. A bomber leaves a time-bomb in and Porky goes at lengths to return it to him without knowing its a bomb.
A crazed bomber is terrorizing the city. Meanwhile, a young Porky is a few cents shy of buying an ice cream soda; he starts earning it by picking up items people drop and handing them to him. But the bomber is not pleased to be on the receiving end of Porky's good deed...—Jon Reeves <jreeves@imdb.com>