While waiting outside a store that afternoon, the boys witness a man being attacked in the alley and come to his defense, chasing away his assailants.

When the cynical Muggs tosses the card in a garbage can, Glimpy McClosky digs it out and finds the man's cash-laden wallet in the trash.

Escorting the boys upstairs, Cortland introduces them to his pretty daughter Louise and his son Roy, whose hand has been sprained.

When Muggs overhears Andre drop his French accent during a phone conversation, he begins to suspect that he is a phony and decides to follow him.

Muggs and Glimpy trail Andre to the Zig Zag Club, where he meets his paramour, showgirl Maizie Dunbar.

Later that night, Muggs takes Maizie to the Cortland party, and when she sees Andre flirting with Louise, she jealously confronts him.

Soon after, Louise appears and announces that she has just received a phone call from Lefty, one of the crooks, who is threatening to harm Skinny if Roy informs on him.