The eighth season of the American drama television series 24, also known as Day 8, premiered in the United States on Fox on January 17, 2010.

The season's storyline begins and ends at 4:00 p.m. Set 18 months after season 7, the story arc involves Jack Bauer contending with assassination threats made during a peace conference between President of the United States Allison Taylor and President Omar Hassan of the fictional Islamic Republic of Kamistan (IRK).

[7] The three main acts of season eight are: The signing of an important treaty between the US and the IRK (Islamic Republic of Kamistan) is about to take place at the UN.

With the help of Renee Walker, who is struggling to keep her life together, Jack goes undercover and forces the cooperation of Sergei Bazhaev's mob family.

He learns that the Russian government are behind everything as they see the treaty as a threat to their influence in the world and supported and funded Mehran's group to destroy the peace process.

This leads to a cat and mouse game when Charles Logan approaches Allison Taylor and offers to use the unique resources at his disposal to capture Bauer.

After ambushing Logan, Jack learns that Russian President Yuri Suvarov, who has arrived in New York for the signing is the mastermind behind the conspiracy.

When President Taylor has free rein to sign the treaty and have Jack permanently silenced she has a change of heart and turns herself in to the Attorney General.

Wanted by Russian and American forces Jack says goodbye to Chloe who is watching him through the camera feed of a predator drone.

Starting with episode 18, Chip Johannessen was promoted to executive producer by the production company Imagine Television.