After one of the tracker dogs in CSO, Sam, suddenly died of acute abdomen, younger dog Viky must have taken all the responsibility in searching cadavers and poisoned baits in the Czech Republic. Unfortunately, there are many cases recently, so CSO decided to train a new dog, who would help with fighting poisoners.

The dog handler Klára Hlubocká have chosen the breed that she knows perfectly - Chesapeak Bay Retriever. This time it's female and her name is Irbis. She stays with Klára and her new team-member Viky since 15th July.