Lisa and Terry Jackson have five-year-old triplets, Will, Ethan and Isabella. Lisa, a stay-at-home mom, is outnumbered and burned out by her boisterous, ill-behaved children, especially her strong-willed daughter. Isabella is so out of control, she even jimmies her brother�s locked door with a coat hanger! Dad, Terry, is checked out, with a job that takes him 250 miles away from home six days out of seven. Can Supernanny fix this fragmented family of five?