"America After 9/11" traces the U.S. response to the September 11, 2001 terrorist attacks and the devastating consequences that unfolded across four presidencies.

This two-hour special offers an epic re-examination of the decisions that changed the world and transformed America. From the wars in Afghanistan and Iraq to the January 6 insurrection, "America After 9/11" exposes the legacy of September 11 — and the ongoing challenge it poses for the president and the country.