A man with a tattoo of Oulu Kärpät on his arm is found murdered on the Spanish coast. Hilkka Mäntymäi's (Riitta Havukainen) peaceful quality time in Finland is interrupted when Luisa Salinas (Maria Romero), who leads the investigations in Spain, sends Hilka a request for help.

Hilkka (Riitta Havukainen), Andres (Fran Perea) and Kimi (Asko Vaarala) arrive in Spain to help Luisa (Maria Romero). The strange connections of the Finnish entrepreneur couple Sohanna (Alina Tomnikov) and Petter (Paavo Kinnunen) also raise suspicions among other Finns on the Sun Coast. The discovery of the water plant makes the team realize that it is a bigger crime ring.