President Kirkman struggles to put together a new Supreme Court; FBI Agent Hannah Wells goes undercover; Seth contends with journalist Abe Leonard, who returns from the Middle East with an explosive story.

As the White House gears up for President Kirkman's first international summit, Kimble Hookstraten faces her toughest political battle yet when her speakership is challenged. Meanwhile, Alex wrestles with whether or not to bring the kids back to Washington.