Elizabeth relies on the advice of former secretaries of state on how to handle a delicate situation.

Elizabeth attempts to hunt down those who attacked the White House. When she finds they had ties to foreign entities, she must be careful not to incite a war. Henry meets one of the attackers.

After a factory fire, Elizabeth flies to Milan to face off against the Chinese Foreign Minister over a treaty to end sweatshops. Daisy struggles against he feelings of pessimism for her baby's future.

While in Thailand, Henry finds himself at the center of an international incident when an ex-girlfriend is imprisoned for criticizing the monarchy. Elizabeth helps Jason prep for college.

When the surrogate carrying the grandchild of the Vice President is arrested for human trafficking, Elizabeth must get involved. Henry thinks Stevie is being followed. Blake deals with demanding Japanese gardeners.

Elizabeth attempts diplomacy with Haiti without resorting to military action. Haiti's leader refuses to step down despite losing an election. Blake needs to find a new job before being fired.

Elizabeth and Jay must work to keep Spain from defeating a historical agreement between Serbia and Kosovo. Henry has to deal with a bizarre encounter with Secretary of Defense, Gordon Becker.

Elizabeth goes head to head with a U.S. governor over the state's new policy of separating unauthorized immigrants from their children.

An American-Made cluster bomb leaves innocent Syrian children dead, leaving Elizabeth to figure out what went wrong. Russell argues with a homeless protester leaving him with a PR disaster to deal with.

When a group of American missionaries become hostages during a violent uprising abroad, Dalton must confront demons from his past in order to help Elizabeth secure their safe return home.

Elizabeth tries to finalize a deal to bring the US troops home from the Middle East. A woman's life is threatened by rumors she is involved with one of Elizabeth's staffers. Henry provides relationship advice to Will.

When a super typhoon threatens a small Pacific island, and Elizabeth and her team must find a way to relocate the entire population before landfall.

While Elizabeth is away, her staff tries to secure an international agreement to protect citizens who have been displaced due to global warming. Daisy and her daughter are caught up in a measles outbreak.

A NATO ally carries out a state-sponsored assassination attempt against one of its own citizens, who is also a U.S. resident and old friend of Elizabeth's; Alison starts dating the son of one of Elizabeth's political rivals.

As Elizabeth prepares to declare her candidacy for president, she must deal with fallout from a news article alleging she had an affair with President Dalton during her CIA days; Mike B. and Jay adjust in their roles as campaign staffers.

Elizabeth is ready to leave the state department and announce her run for president. Terrorists attack the UN delegation in Geneva.