Elizabeth must fend off a baseless investigation into her past that threatens to derail the first major legislation of her presidency. Also, First Gentleman Henry squirms after his appearance on THE LATE SHOW with results in heightened scrutiny of the romance in the First Couple's marriage.

Elizabeth faces mounting protests over rising fuel costs as she prepares to throw out the first pitch at a New York Mets game. Also, Mike B. is questioned by the Senate Intelligence Committee as part of the investigation into whether the McCord campaign conspired with Iran to steal the election.

Elizabeth must decide whether to use autonomous unmanned weapons or send U.S. soldiers to bring the mastermind of the UN gas attack to justice. Also, Blake is questioned by Senator Hanson about potential campaign finance violations related to his love life, and Henry and Elizabeth search for the perfect dog.

Henry teams up with a Marine veteran to fight for legislation that helps Veterans Affairs provide better mental health care, but he encounters surprising resistance from Vice President Carlos Morejon. Senator Hanson questions Daisy about an arrest in her past.

When evidence implicates Daisy in the leak of hacked information during the presidential campaign and threatens to topple Elizabeth's presidency, Elizabeth must decide what to believe and how far she's willing to go to uncover the truth. Also, Henry and Elizabeth host former President Dalton at the White House after his interview with Bob Schieffer.

When a fabricated video makes it look like Elizabeth and Henry are making fun of a foreign dignitary, they struggle to convince him not to pull out of an important international agreement. Stevie says goodbye to an important person in her life.

When U.S. intelligence locates the mastermind behind a foreign country's hack, Elizabeth must decide whether to risk war by extracting him from the country while she also prepares for the White House correspondents' dinner. Jason faces backlash after he confronts his school newspaper over its coverage of Elizabeth.

When an American tech CEO goes missing in a foreign country, Elizabeth navigates complicated diplomatic terrain to get him back without triggering a regional conflict. Things get personal when Stevie and Henry testify at House impeachment proceedings.

Elizabeth faces a national security crisis when a military conflict in international waters spirals to the brink of nuclear confrontation. With the imminent threat of impeachment looming over the McCord administration, Elizabeth and Henry make a wish-list of things to do while she's still in office.

President Elizabeth McCord kicks off a new landmark political initiative with help from members of the World Cup Champion U.S. Women's Soccer team, while Flo Avery, who was born the day women were granted the right to vote, looks on. Opposing the initiative is Senator Amy Ross from Ohio. Also, the McCords overcome last-minute obstacles to pull off a spectacular family celebration with a reunion of familiar faces, that includes a performance by Peter Frampton.