Jack reluctantly works with Kim on an undercover job that may help them gain an advantage over Saunders.

Palmer informs his cabinet of the crisis, while Saunders makes yet another demand.

Chase tracks down the man who left the hotel and learns that the virus is spreading to the general public.

Jack attempts to use Saunders' daughter as leverage to gain control of the virus, while Palmer must deal with the discontented press.

Michelle gets the results of her test, while Adam finds that the virus has struck too close to home.

Tony finds himself compromised when Saunders exploits his only weakness.

Tony works to free Jane from CTU before Saunders can harm Michelle, but Chloe and Jack become suspicious of his activities.

Sherry meets with Palmer's political rival and proposes a deal to blackmail him.