Last Resort (US tv show) 2012
As of now, there are two episodes that have been aired. However, I only watched the pilot.
This is the story of a U.S. ballistic missile submarine Colorado that received order to launch missiles at Pakistan, through the back channel. Captain Chaplin, questioning the order, asked for a confirmation through the proper channel (which was in contradiction to his orders). His second in command, XO Sam Kendel, followed his lead as well and asked for confirmation. They were suddenly attacked and later on, discovered that it was a US ship that attacked them. They decided to take refuge on an island. However, a few crew member thought that Captain Chaplin's decision of questioning the order made them fugitive. There were also a small SEAL team that they picked up right before the order. Armed with nuclear weapon, Captain Chaplin sent a message to the US saying that if they don't leave them alone, they will take extreme measure to ensure their survival: "If you fire at us, we will all burn."
While the crew are stuck on that island, there are characters in DC that may or may not help. However, everyone has their own agenda. There is Kylie Sinclair, who has has a prototype for a magnetic blocking device on the submarine ship, gets a text from an inside source giving her a heads up about the turmoil on the ship. She goes to Admiral Sinclair whose daughter is serving on board the USS Colorado and it seems that he may well be an ally since he wants to save his daughter. Of course, Kylie Sinclair just want her prototype to be recognized.
Conclusion: This is an action/drama tv show, centering on politics, the military and all kind of power play as well as mercenaries.