Gwen Hill adores Green Valley Avenue. So when the house next door is sold, Gwen wonders how the new family will settle into this cosy community. More than a new home, it's a clean slate for Frankie, who has moved her brood in a bid to save her marriage. To maintain privacy and corral her children, Frankie proposes a fence between the properties, destroying Gwen's picture-perfect front yard. To Gwen, this is an act of war.