When Papa doesn't return from a nocturnal honey-gathering expedition, Cress holds out hope, but her mother assumes the worst. It's a dangerous world for rabbits, after all. Mama moves what's left of the Watercress family to the basement unit of the Broken Arms, a run-down apartment oak with a suspect owl landlord, a nosy mouse super, a rowdy family of squirrels, and a pair of songbirds who broadcast everyone's business. Can a dead tree full of annoying neighbors, and no Papa, ever be home?