When a storm destroys a naval base in Bahrain, Elizabeth urges President Dalton to reexamine his approach to climate change and his overall foreign policy, something that could jeopardize his re-election campaign. Also, Jose Campos tries to bring Henry back into the DIA fold, and the McCords worry that their family is being stalked when they discover Jason's laptop may have been hacked.

After U.S. environmental activists protesting China's damage of a South China Sea reef are arrested for spying, Elizabeth finds herself in a stalemate with the Chinese foreign minister as she lobbies for their release. Also, Henry pushes the FBI to investigate one of Elizabeth's former students who he suspects is his family's cyber-stalker, and President Dalton's trade visit to Vietnam brings back memories of serving there during the war.