1. Episode 1

Police break down the door of the Millers' family home. Teenage Jamie is arrested and taken in for questioning but insists he's done nothing wrong.

2. Episode 2

The police look for answers — and the weapon — at Jamie's school. They can't get any leads from his friends, until DI Bascombe's son offers to help.

3. Episode 3

Jamie meets with a psychologist. He's reluctant to speak at first, but eventually he opens up about his complex feelings towards Katie.