Mr. Pfister prepares to release the pigeons.
Silent explosive discovered by anti-noise crusader Albert J. Pfister while working on a noiseless firecracker for the Fourth of July.
When agents of both CONTROL and KAOS refuse to sign his petition to eliminate all the noise from the world, he vows to use Nitrowhisperin, carried by his "private air force" of homing pigeons, to eliminate the world itself.
[Episode #82: "Spy, Spy, Birdie".]