After a harrowing encounter with the villainous cat Pyewacket, the bunnies hurry back to Stonewall with the map they found and warn Grandma Maizy of what appears to be an imminent invasion of their burrow, likely by the misfit residents of Drainpipe. Gifted powerful herbs and donning disguises, Foo Foo and Run E. make the perilous journey to the depraved settlement, prepared to do whatever it takes to protect their home.