Ezra is a beautiful girl from Gaza. When he finds his little sister, who was stolen from the orphanage as a child, in Italy, he flees Gaza to be with her. However, when the refugee boat he was on sank off the coast of Cyprus, all the refugees on the boat died and only Ezra survived. Chahangir Huseynov, one of the richest businessmen in the world, who saved Ezra, falls in love with this beautiful mermaid Ezra at first sight. At the same time, Mustafa, nicknamed Tek Gun, who is the chief inspector of the Anti-Smuggling and Organized Crime Branch of the Istanbul Police Department, and his assistant Ömer, disguised as an illegal gold courier, go to meet Çahangir. That's where Ezra from Gaza and One Gun Mustafa cross paths. When Mustafa's police identity is exposed in front of Çahangir, he is forced to flee the place. When Ezra was afraid of Chahangir and ran away; The only place Ezra can escape and take shelter is with Mustafa. One Gun Mustafa is a young and vagrant police officer who likes to live life alone. Although Ezra seems like a burden on Mustafa at first, over time a great love begins between them.