Jay and Kat devise a way to help persecuted foreign LGBTQ citizens escape their country while their U.S. homeland security applications are processed. However, when the country closes its borders, Jay and Kat are forced to change that plan quickly, as it could now threaten their relationship with neighboring allies.

When the upcoming marriage of two star-crossed lovers from Colombia is in jeopardy, Elizabeth works to reunite the son of the Colombian president and the daughter of the rebel leader, whose union is at the heart of an important peace deal after years of civil war. Also, Henry prepares to send his operative undercover, Jay deals with his tenuous marital situation, and Daisy makes a shocking discovery regarding Kevin.

As Elizabeth holds peace talks between the prime ministers of India and Pakistan, a mysterious plane crash tied to both countries causes the three parties to reevaluate the deal. Also, in an attempt to help the NSA locate the terrorist Jibral Disah, Henry approaches a former teacher of one of Disah’s wives for information, and Elizabeth withstands a grueling interview with Jane Pauley.

When warring rebel groups threaten Elizabeth’s Somalian food relief efforts and kidnap an American aide there, she reluctantly considers asking a notorious Russian arms dealer for help. Also, Henry is blindsided when he is taken off the VFF doomsday cult case, and Alison and Stevie await their college acceptances.

Elizabeth seeks creative solutions when the president of Sri Lanka's psychic convinces him to not move forward with a trade agreement with the U.S. Also, Alison grapples with guilt for missing the warning signs after her college roommate attempts suicide, and Henry makes an abrupt career decision.

Elizabeth and the team are caught in an uncertain situation when they are about to award a foreign leader with the Medal of Freedom but learn he may have known that a minority group in his country is being persecuted. Also, President Dalton doubts his ability to return to office after being cleared by his doctor, and a past family grievance is brought to light when Henry’s sister pays a visit.

Elizabeth’s negotiations for a security agreement combatting gang violence in South America becomes complicated when she attempts to free an American recently kidnapped there.

Elizabeth and President Dalton work together to solve the Greek debt crisis, but not everyone at home is happy with the agreement. Meanwhile, Henry mulls over a new job offer, and Stevie reconnects with her childhood friend, the President’s son.

When Elizabeth and her staff fly to Africa to offer development aid to the continent, they are caught by surprise when the Chinese arrive there first, ready to outmaneuver the U.S. with competing offers of aid. Also, when turbulence on their plane ride to Africa leaves Daisy unnerved, she and Susan Thompson go on a welcome tour of Africa, admiring the beauty of the continent. And, the FBI asks Henry to help investigate a Christian cult member who may have helped build the bomb used in the Illinois coffee shop attack.

When an influential rabbi organizing a symbolic Iran/Israel soccer game is killed, Elizabeth and Jay’s peace treaty plans for the two countries are jeopardized. Also, Elizabeth’s name is floated for a Nobel Peace Prize. Jay’s tireless work on the Iran/Israel peace deal strains his marriage. Daisy makes a connection with new work colleague, Kevin Park.

Elizabeth enlists the help of Hollywood star Ashley Whittaker to help sway the president of Kyrgyzstan to end human trafficking in his country, but the added attention could put an American captive at risk. Also, when Henry finds the bomb that’s being held by the doomsday cult, he uncovers information that they could be planning a deadlier attack.

As the government shutdown shows no sign of progress, Secretary of State McCord must negotiate an agreement between the White House and its opposition led by Senator Morejon. Also, Elizabeth is having trouble finding a suitable replacement for the chief of staff position.

Senator Morejon puts phase two of Elizabeth’s U.S./Iran arms deal in jeopardy when he asserts that Iran funneled money from phase one of the deal to fund a recent bombing that killed an American citizen. Also, Henry mulls over the option of becoming the chairman of the new military ethics department at the National War College.

Elizabeth is attending a summit in Montreal to resolve territorial claims of the North Pole when an activist group detonates a bomb and she can’t locate Jason and Piper. Also, things take a turn for the worse when Elizabeth learns that Russia was involved in the bombing, and Henry helps one of his students work through a difficult decision.

Elizabeth faces unexpected consequences when she makes a plea to the President to help with a dire situation in Western Africa.

When a Texas state trooper is killed by a Mexican cartel smuggler, Elizabeth arranges an extradition deal before going on vacation to celebrate her 25th wedding anniversary in New York City. However, when political issues arise around the case, she is forced to cut their trip short. Also, Elizabeth’s son injures himself while Blake is watching him.

Elizabeth, to her surprise, is met resistance when she travels to Myanmar to sign a Pacific Rim trade agreement, which will modernize the country's power grid and benefit several of its trading partners. Meanwhile, Nadine attempts to mend her relationship with her estranged son.

After Elizabeth delivers her first speech to the United Nations General Assembly formally condemning the terrorist group Hizb-al Shahid, she discusses forming a coalition against them with the Russian Foreign Minister. However, the talks create a conflict of interest between Elizabeth and Henry, who is searching for a way to save Dmitri’s ill sister, Talia Petrov, from the Russian government.

After a bombing at a political rally in Angola, Elizabeth must find a way to respond to a “dissent memo” from the Bureau of African Affairs when they criticize the Dalton Administration’s lack of attention to the upcoming Angolan election.

Elizabeth is shocked when the Philippines' unconventional new president, Datu Andrada, makes a pass at her during their meeting to discuss his refusal to participate in an Asia-Pacific territory treaty. Also, Elizabeth asks Jay to look into Kevin Park's CIA connections, and Henry fears for his operative who is embedded in the religious cult when he goes radio silent.

Elizabeth’s landmark global climate treaty with more than 200 countries is jeopardized when China threatens to back out due to her meeting with an ailing Dalai Lama. Also, Henry worries about his undercover operative’s safety, and Jay is surprised when Abby serves him with a custody agreement for their daughter.

As the U.S. hunts for the person believed to be behind the CIA arms smuggling case, Elizabeth and her team must work to save Jay when he’s kidnapped in Nice, France, during a fact-finding mission into the suspect. Also, Henry suspects the doomsday cult is planning an attack in Israel, and Jason dupes his parents into giving him money for an expensive calculator when he’s really using it to impress a girl.

Elizabeth heads to Brussels to seek NATO’s support against Russia when it threatens to invade Bulgaria, but when France refuses to cooperate, it could threaten the alliance’s very existence. Also, Henry’s new government role has him dive into the Russia issue and turn to his former operative, Dmitri Petrov for help, and as Nadine and Mike B’s relationship heats up, Elizabeth finds out information about her old friend that makes her question his loyalties.

When a Russian dissident flees to the U.S. after contracting smallpox, Secretary of State Elizabeth McCord and retired U.N. Ambassador Kat Sandoval must work with Russian Foreign Minister Konstantin Avdonin to contain the outbreak.

Secretary of State McCord struggles with the realization that she may need to advise the Afghan government that a compromise with the Taliban may be better than a war with them. Also, Henry uses Dmitri as bait to convince a Russian spy to help the U.S., and Daisy returns from maternity leave and decides to finally tell Joe’s mother about the baby.