Day 9: 3:00 P.M. - 4:00 P.M.

As Jack deals with unforeseen circumstances, an unlikely duo joins forces to prevent an impending attack in London. Meanwhile, homegrown terrorist Margot Al-Harazi reveals her demands - revenge for her husband's death in a U.S. airstrike. Also, President Heller orders a lockdown of military airspace, but it may be too late.