The island of Sørøya has not let Mehtämikko have it easy, but there are many promising fishing spots ahead that will motivate him to overcome the challenges. In the wilderness of Käsivarre, Aki and Äijä get an active start to their fishing day. Manu has arrived in Tenojoki to help with the humpback salmon, an alien species that has entered the river. Teemu and Mima, on the other hand, have gone to Hausjärvi to monitor the restoration work of the wetland, which aims to provide a better habitat for endangered bird species. In Lakselva, Emma and Jouni are surveying new fishing spots. The purpose is also to gather the fish friends who have arrived.