A body is found in the water near Liljeholmen. The body belongs to a 39-year-old Danish citizen with a solid criminal record and who was a member of a notorious Danish drug gang. Should the Beck Group get a gang war on their necks? Martin Beck is back to the joy of the entire Beck group. Martin's daughter Inger is not as happy but has to accept her father's decision to start working again.

A man is found brutally murdered at a running track in the woods. At the same time, Josef resumes the relationship with a former girlfriend from school, Cissi, whose father recently died of a sudden heart attack during a robbery. Josef goes against Alex's directive and begins an unofficial investigation into Cissi's father's death, which puts him in a complicated conflict situation.

A sleepy Swedish province hopes to lure a discount store chain by hiring a pompous commercial director to document their town's worthiness, but two bright, brash high school girls from immigrant families use their cellphones and selfie sticks to tell the real story.

Sune and Sophie are going on a class trip, "the secret journey". It turns out it is the same date as Sune's favourite grandpa is getting remarried. And his grandpa wants Sune to be his best man. When at grandpa's he changes his mind. He has to go back to the classtrip. After this we are on a road trip, Sune is chasing Sophie and the class - and his parents are chasing Sune.

On the eve of the annual Valleby Games, the competitors are injured one by one. The clues lead Jerry and Maya to a dark secret and an old myth about the games' mascot that is said to haunt the hall. Will Jerry and Maya find the solution before anyone else gets hurt and will their friendship survive the trials?