The Secret Files of the Spy Dogs S01 E03 "Hair" or "The Secret File of the Frenetic Follicles"

It all starts when the flea nation steals a truck load of the government's hair growth chemical. Ralph is contacted about the missing chemical. He then, using his high tech TV, finds that the fleas are aboard a blimp floating above the local baseball stadium during the big game. So Ralph, with the help of Scribble, Mitzy, Frank, and Angus' floppy foam hats, have to put a stop to the fleas evil plans of making the dirty, long haired, nail biting fans in to big fuffy balls of perfect living conditions for the fleas.