After getting in trouble with the law during a night of partying, spoiled Igor is forced by his father to take a police job and earn his own living.
While investigating the death of a maid who worked in a wealthy home, Igor learns new information about his late mother, who died when he was a child.
Korolyov learns his service weapon, which fell down a sewer drain, was used in a recent murder. Igor tries to access his mother's archived case file.
While pursuing an arms dealer, Vika gets in a life-threatening tangle. Igor tracks down the detective who investigated his mother's case.
Now a murder suspect, Igor tries to figure out who the real killer is in order to clear his name. Meanwhile, Korolyov hides a witness who could help.
Two bodies share an unlikely cause of death. Igor encounters an intruder at his home, and later has a revealing chat with a friend of his father.
When Korolyov is suspected of a fatal stabbing, Vika defies orders and assigns a secret investigation. Igor learns where his dad was when his mom died.
Igor suspects Pryanikov is hiding information from him, and later meets his father's former bodyguard. Vika and her team search for a serial killer.
Igor's attempt to infiltrate a gang of young robbers results in a hostage situation. Pryanikov reveals to Igor what he knows about his mother's death.
The team investigates the vicious beating of a man having a meth-fueled party for two. Igor tracks down Dato to hear what he was stopped from saying.
When ex-fiancée Lera begs Igor to help her brother Stas, who was taken captive due to a big debt, the team launches an operation to catch his captors.
An attempt is made to kill Igor, and Lera is kidnapped. Hidden notes relating to Igor's father's first company reveal shady business activities.
Six months later, a surprise development brings Igor back to work, but not before he has a brush with danger. Later, a sultry woman catches his eye.
The team investigates the apparent suicide of a woman who was trolled by an online follower. Igor gets a firsthand look at the business Katia is in.
Igor hires Ignatiev's administrative assistant to steal info from her boss, and sets up Zhenia with his wealthy friend Nina, who needs a detective.
A man who worked for a collection agency is found dead in a dumpster. Igor coaches Zhenia on table manners before a fancy dinner date with Nina.
The team looks into an elderly woman's suspicious death, which coincided with the disappearance of two antiques from her home. Dania forms an alliance.
The team questions a businessman who returned from a trip to find a dead woman sitting in his car. Zhenia meets Nina's parents and Igor meets Katia's.
The vandalization of a buzzy new artist's exhibition sends the team looking for a suspect with a motive. To get money, Ania impersonates sister Zika.
An intense life-or-death experience brings Igor and Vika together. Zhenia makes a decision about Nina. A gunman holds customers hostage at a pharmacy.
The team investigates the fatal stabbing of a psychic at a lunar eclipse viewing. Vika gets some stunning news, and Dania is given a secret mission.
Singer-actress Vera Brezhneva seeks the team's help in catching a creepy stalker. Igor and his male co-workers let loose at a stag party.
The team hunts for the killer of a young woman found strangled in a field. A wedding evokes feelings of romance and goodwill among the guests.
While the team holds a funeral for their fallen comrade, a plan is set in motion to catch his killer. Igor's plot for revenge comes to fruition.