Cat's Cradle Part 1. Sorjonen takes a leave of absence because of his wife's condition. In the middle of the day, a young man is shot at Lappeenranta's Sand Castle. Niko Uusitalo becomes the detective in charge.
The Bloodmaid Part 1. A body is found in Laura Kantola's student apartment, which triggers an investigation into an old missing person case. Sorjonen is facing what seems to be the most complicated case in the history of SECRI.
Without a Shadow Part 1. Lawyer Seppo Laakkonen's sons Valdek and Nikolai come to Sorjonen's home and ask him to look for their missing mother and stepsister. As the traces lead back to Russia, an old case is reopened.