Donald is manning a listening post and falls asleep; he blows trumpet calls in his sleep and wakes his nephews. For their revenge, they send up a model airplane filled with gingerbread men with parachutes; Donald shoots it down, and cowers in fear when he sees the parachutes (and hears a simulated battle), until one lands on his beak. Donald kicks his nephews out until he mistakes a bee for an airplane, and calls them back to fight this menace.
