Albert Pfitzer(the P is silent) appears at Max's apartment and asks Max to sign a petition against noise. Max refuses, saying "silence is unamerican." Later that day, the CONTROL message drop is destroyed by a silent explosive. Max and 99 then stake out Siegfried's message drop, but it is blown up quietly too. Siegfried and Shtarker join Max and 99 as they track down Pfitzer and his fantastic quiet explosive, Nitrowhisperin.

A great scene in this episode is Siegfried attempting to force a pigeon to return home to Pfitzer's house - "You have relatives living in the park, perhaps?"