The 9-week intervention program begins. But the 3 experts dedicate 2 weeks just to assessing the 5 kids suspected of having ADHD. Making a correct diagnosis is critical - many of these kids have been misdiagnosed in the past.

Three weeks into the nine-week intervention and the pressure is on. The experts put forward their diagnoses and recommended treatments. Prof. Mark Dadds attempts to change the way the parents reward and discipline their kids.

As the series comes to an end, all of the families come together for a weekend relapse prevention retreat. Each child has been asked to get up on stage and share what he or she has learnt over the course of the program.