Earl Harrington strolls into a café and orders prodigiously. He attracts the attention of two Cubans, who rather resent the lofty manners of the stranger. They resolve to humiliate him and resort to the trick of "loading" a cigar. The cigar is proffered the absent-minded patron and he is about to light it as the faces of the plotters are illumined with smiles. He thinks differently and places the cigar in his pocket and strolls out followed by the Cubans. At the end of the circuitous trip, Harrington returns to the café and the plotters behind him. Harrington seats himself at a table, orders a lunch and produces the fatal cigar. The match is applied and they move away awaiting results. The visitor tosses the cigar aside and it rolls under the table where they are sitting. It explodes and the avengers are hoist by their own petard, their clothing being ruined and their features disfigured.
—Moving Picture World synopsis