The new season returns to Larvik on a seemingly idyllic summer evening at the Greenwood family. But the following morning, a hotel employee is found murdered, and a six-year-old British boy, Clifford Greenwood, has disappeared without a trace. The family receives a ransom demand and cryptic messages from the kidnapper, and when family secrets are revealed, Wisting suspects that there may be a personal motive behind the disappearance. There is also enormous international pressure on Wisting and the team to solve the murder and find the boy before it is too late.

“Petter (Svein Sturla Hungnes) 辍学，与女友分手。他搬回家乡，和独自生活的母亲 (Bente Børsum) 住在一起。Petter 和母亲的关系一直很好，母亲也不介意他搬回家。当 Petter 在家里找到了一个新女孩时，他的母亲做出了消极的反应。