In the exciting series 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. Can Marcus and Sam take control of the sub before it’s too late?
Kylie works with Admiral Shepard to bring down the President using evidence of what really happened in Pakistan. This affords Marcus the opportunity to surrender the Colorado, if all goes according to plan.
A typhoon, a mutiny and a Washington coup d'état will force Marcus and his crew into unlikely alliances. As Sam's grief strains his loyalty to Marcus, will Sainte Marina get the supplies it so desperately needs? How far will Marcus go to ensure the crew’s survival and will it cost him his life?
Sam and James depart the island in a daring rescue attempt. Back on the island of Sainte Marina, a Chinese diplomat arrives to make a deal with Marcus. With scarcity and a prison problem plaguing him, Marcus finds himself treading down a more treacherous path than he could have imagined.
The crew of the Colorado waits for a goodwill visit from their families, a visit that will soon turn into a nightmare as Marcus must consider the unthinkable once again. Meanwhile, the true reason for the nuclear devastation in Pakistan is revealed.
Grace (Daisy Betts) is ordered to defend a crew member accused of raping an islander, while Christine (Jessy Schram) looks to get on a ship taking crew members’ families to the island.
Marcus (Andre Braugher) orders Sam (Scott Speedman) to find the crewmember who abetted the CIA commando attack on the island. Meanwhile, Prosser (Robert Patrick) goes after Serrat and his men for dealing illegal drugs to the sub’s crew.
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) negotiate with the Secretary of Defense, Grace (Daisy Betts) leads the Colorado on a risky mission to repair the island’s damaged sonar defenses.
As Marcus (Andre Braugher) considers letting frightened crew members 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 (Sahr Ngaujah) in the dark about the island’s potential mineral wealth.
As Marcus 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 runs up against an unexpected foe in her search for the truth about the attack.
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 USS Colorado.
Last Resort is a thriller set in the near future when the country is very fractured and revolves around the crew of a U.S. nuclear submarine who become hunted after ignoring an order to shoot nuclear missiles.
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