Heads of state gather at the UN to sign the accord, three at CTU make a final effort to expose a conspiracy, Logan and Pillar tie up loose ends, and justice may elude Jack.
It's the penultimate instalment. President Taylor pushes on with the peace treaty and Jack takes matters into his own hands.
Sarah, Tommy and Kevin find William's most shocking secret when they set out in search of his lost treasure; Justin makes a startling revelation about his enlistment when he returns from the hospital.
When an ultimate fighter disappears after winning a match, the team discovers he knew a lot of people that could have been responsible for his abduction.