Last Resort

After questioning orders to fire nuclear missiles into Pakistan, Captain Marcus Chaplin (Andre Braugher) and the crew of the nuclear sub USS Colorado are deemed traitors by their own country. Forced to take refuge on an exotic Pacific island, they must fight to clear their names so that they can return home.

After Marcus (Andre Braugher) employs an experimental device to elude U.S. warships, a commando team attack sends Sam (Scott Speedman) and Grace (Daisy Betts) into the jungle to defend the island. Meanwhile, Kylie (Autumn Reeser) looks for the source of the attack on the U.S.S. Colorado.

As Marcus (Andre Braugher) looks to control the Colorado's restive crew, he agrees to run the blockade in order to gain the release of three sailors who are being held by the island's corrupt mayor. Meanwhile, Kylie (Autumn Reeser) runs up against an unexpected foe in her search for the truth about the attack.

As Marcus (Andre Braugher) considers letting frightened crewmembers leave the island, he is faced with the government's clandestine efforts to spark a mutiny. Meanwhile, Sophie (Camille de Pazzis) looks to keep Serrat (Aahr Ngaujah) in the dark about the island's potential mineral wealth.

As Marcus (Andre Braugher) and Sam (Scott Speedman) negotiate with the Secretary of Defense, Grace (Daisy Betts) leads the Colorado on a risky mission to repair the island's damaged sonar defenses.

A commando raid that contaminates the island's drinking water sends Marcus (Andre Braugher) and a skeleton crew out to sea to protect the sub, while Sam (Scott Speedman) struggles with drug-induced hallucinations as he tries to fend off the attack.

As Marcus (Andre Braugher) and Sam (Scott Speedman) hunt for the traitor in their ranks who stole their nuclear launch key, Prosser (Robert Patrick) disobeys orders and starts a small war he can't control. Meanwhile Grace and James must work together to defuse a dangerous situation, while back in D.C. Christine is indicted as Sam's co-conspirator.

"Big Chicken Dinner" -- Marcus brings the members of the Colorado and the islanders all together to celebrate their two cultures -- a feast in the spirit of Thanksgiving. But the good times suddenly turn bad the next morning when an essential crew member is accused of a serious crime. Grace handles the man's defense and she's tasked with finding out the truth.

Marcus (Andre Braugher) must consider launching a nuclear missile on Indian troops moving into Pakistan in order to stop the slaughter of his crew's family members as they approach the island.

As Sam (Scott Speedman) and James (Daniel Lessing) launch a clandestine mission to Manila in search of Christine (Jessy Schram), Marcus (Andre Braugher) contemplates the Chinese government's offer of protection.

As a coup is hatched in Washington, D.C., Marcus (Andre Braugher) accepts the Chinese government's offer of assistance, placing the United States at odds with the rival superpower and the USS Colorado on a collision course with a Navy destroyer.

Everything is coming to a head on Sainte Marina as the mutiny movement gains stream and the D.C. coup erupts. While Marcus works to fend off the dangerous offers of the Chinese ambassador, and hold his crew together, Sam struggles to maintain belief in his beleaguered captain and stave off Prosser's open rebellion. Grace must decide whose side she is on as her father's desperate ploy explodes in the nation's capital. Kylie is thrust into the center of the storm and finds herself running for her life. Sophie fulfills her obligation to the scheming Serrat, but follows her heart when faced with Sam's vulnerability and need.

In the season finale, a violent battle for control erupts on the submarine, which leaves the Colorado vulnerable to capture by a third party -- one with an exploitative plan. The question becomes: can Marcus and Sam take control of the sub before it's too late?