Television News 'The Last Ship' Season 4 to premiere Aug. 20 on TNT 05/24/2017 "The Last Ship" will premiere its fourth season with a 2-hour episode on TNT on Aug. 20. Read More RELATED NEWS Jimmy Fallon's 'The Tonight Show' dropping to only four nights a weekAshley Tisdale announces birth of her second childSelena Gomez is a billionaire TAGS: Bridget Regan Adam Baldwin Eric Dane The Last Ship