Feeling neglected on his birthday, Ereth, the cantankerous old porcupine, sets out looking for his favorite treat and instead finds himself acting as "mother" to three young fox kits.
Poppy, accompanied by her troublesome son Junior, his skunk friend, and Uncle Ereth the porcupine, responds to a summons to return to her ancestral home, Gray House, to save the mice there from destruction by a bulldozer.