With Willie announcing his "semi-retirement" as Duck Commander in chief on the series premiere, uncle Si warns of looming danger afoot.

Willie, Jase, Jep, and Alan Robertson are the four sons of Phil Robertson and Kay Robertson (Phil also had a daughter, Phyllis, from an affair in the 1970s). Just ahead of the Duck Dynasty: The Revival premiere, Phil died at the age of 79 after battling Alzheimer’s disease. He did not film for the new show before his death.