Supernanny (2005)

Season 5: Episode 3

The oldest Park child, Kyle, 6, has attention deficit hyperactivity disorder (ADHD), but his parents took him off medication when they didn't feel it was working. So he terrorizes his nanny, Alejandra, who cannot control him, as well as his younger siblings, Farley, 4, and Pierce, 2. All the children act out, refuse to follow instructions and take dangerous risks, such as playing in the swimming pool when it's forbidden, but the parents, Heather and Michael, are clueless about establishing control or maintaining boundaries. The kids not only smack each other with abandon, but hit their parents and Alejandra at will.