TNT | 9:00 pm
The apocalyptic action thriller returns for its fifth and final season, which opens three years after the global famine was vanquished. The U.S. Navy is preparing to unveil its first fully functional fleet since the Red Flu pandemic that opened the series, but a different kind of threat could trigger another world war in the season premiere "Casus Belli." Eric Dane and Adam Baldwin return as newly minted Admirals Tom Chandler and Mike Slattery. Also newly promoted, Cmdr. Kara Green (Marissa Neitling) now has command of the USS Nathan James.