On the streets of Lagos, it is not the police who wield power but gangs of fight-hardened young men known as Area Boys. Louis spends time with several outfits, joining them as they patrol their turf, clash with local rivals and keep the peace in a brutal and haphazard fashion. The main income for the Area Boys is an arbitrary and unofficial form of taxation, extracted from local businesses and commercial drivers. Louis gets to know the rich and glamorous Area Boy leader MC, a former street youth himself, who has now become a friend of the most powerful men in the city. Taken under MC's wing, Louis experiences the top levels of the Area Boys' world from the inside, complete with a tour of MC's grand residence and extensive shoe collection, and ending in a chaotic mini-riot with gunshots, blood and mayhem.

On the side of the law, Louis rides with KAI, the government's Kick Against Indiscipline paramilitary task force, as they storm different city districts. With bulldozers and arrest warrants, KAI use their own strong-arm tactics, and are in their way as feared as the Area Boys.

In Law and Disorder in Lagos, Louis wrestles with life in a world in which the forces of law and the forces of disorder are not always readily distinguishable and nothing is quite what it seems.

Faced with the challenging behaviour of their kids, more and more parents in America are turning to psychoactive medication to help them cope, even though the drugs, and sometimes the diagnoses, remain controversial. Louis travels to one of America's leading children's psychiatric treatment centres, in Pittsburgh, Pennsylvania, to get to know the diagnosed children and hoping to understand what drives parents to put their kids on drugs.

Louis meets Hugh, a 10-year-old who has been diagnosed with ADHD, oppositional defiant disorder, Asperger's syndrome and bipolar disorder. Moving in with Hugh and his family, Louis learns more about his controversial diagnosis and gets to know a family where even the dog is on meds.

He also meets Jack, aged six, a child who has been excluded from school for his explosive behaviour and who now takes antidepressant medication for his anxiety. And when 15-year-old Kaylee (diagnosed with ADHD and oppositional defiant disorder) takes a day off her medication, Louis gets a glimpse of what life is like without the drugs.

From 'med checks' to 'personal pharmacies', Louis explores the world of psychiatric medication for kids, attempting to find the line between ordinary bad behaviour and pathology, and answer the question of whether the latest pharmaceuticals are taking the place of old-fashioned parenting.