Madam Secretary

An investigation into her past threatens to derail Elizabeth's first major legislation, and an appearance on a late night show puts Henry's marriage under scrutiny.

Elizabeth faces increasing pressure over rising fuel costs. Meanwhile, Mike B is questioned about whether the McCord campaign conspired with Iran.

Elizabeth has a big decision to make as she grapples with how to bring the culprit behind the UN gas attack to justice. Meanwhile, Blake is questioned by Senator Hanson.

Henry fights for a legislation to provide better mental health care for veterans, but her plans are met with resistance from Vice President Carlos Morejon.

Elizabeth must decide how far she is willing to go to uncover the truth when evidence implicates Daisy in a leak of hacked information.

A fabricated video of Elizabeth and Henry mocking a foreign dignitary circulates, and as a result, they struggle to convince him not to pull out of an important agreement.

Elizabeth grapples with taking an action that could risk war, while Jason faces a backlash for defending her against a school newspaper.

Elizabeth takes on a difficult task as she tries to avoid triggering a regional conflict. Meanwhile, Stevie and Henry testify at House impeachment proceedings.

Elizabeth faces a national security crisis when a conflict spirals to the brink of nuclear confrontation, and the threat of impeachment looms over the McCord administration.

In the last episode of the series, Elizabeth and the team launch a new landmark political initiative, and the McCord family host a spectacular celebration.