TheBulgarianintelligenceofficerEmilBoev,afternumeroustestsandtrialswinsthetrustoftheleadersofthewesternintelligenceservice.HefindsoutthatthemissionistotransportahugeamountofheroinewithaBulgariancargoship.Themissionisstoppedatthelastmoment,butBoevisuncovered.Hemustmakehischoice-servethewesternintelligenceserviceorgetthebullet.Naturally,theBulgarianintelligenceofficerchoosesthelatter,butamomentbeforethedeathsentenceiscarriedout,heissavedbytheBulgariansecretservice.