After years of failed attempts to get rich and various perilous adventures, Gökhan, Necmi, Servet and Hikmet are all unemployed and completely broke. A letter from Manolya, Fatma's lost sister, brings new hope. Manolya is getting married for the fourth time on the island of Kos and would like her sister Fatma and the gang to be there on this happy day. She sends them an invitation and plane tickets. Gökhan has been madly in love with Manolya since childhood and is determined to thwart the wedding. The gang eventually manages to convince Fatma to go, but then the adventure only begins. Going abroad for the first time is not as easy as they think. When they finally arrive on Kos, a big surprise awaits them. Manolya has been working for the Secret Service for years and the wedding is just a cover for an operation. The real reason she sent for the Jackals is to steal a hard drive full of information from the hands of the mob and bring it to Manolya. They will be richly rewarded if they manage to do this. The jackals' first foreign adventure is full of action and humor.