A drama series that first left port back in 2014 sets sail for one final season next month, and TNT has released a new long-form trailer for the show, “The Last Ship.” The post-apocalyptic drama returns for its fifth and final season on Sunday, Sept. 9.

Eric Dane (“Grey’s Anatomy”), Bridget Regan (“Agent Carter”) and Adam Baldwin (“Firefly,” “Chuck”) star in the series, which chronicles the aftermath of a global catastrophe that nearly decimated the world’s population. In the upcoming final season, the world is finally recovering from the deadly virus that devastated the population, but global political unrest remains.

Here’s a look …