With the country in crisis and her husband held hostage, the newly-elected British prime minister turns to the visiting French president for help.

Dalton looks for ways to rescue her husband without informing the cabinet. But without Toussaint's help, there's no chance of saving him.

As the UK terror threat level rises to critical, the kidnappers go quiet. The two heads of state discuss a deal that could save them both.

A grieving Dalton faces her mutinous cabinet and Toussaint confronts her furious husband. Despite everything, the leaders finally reach an agreement.

A state of emergency is declared across the country. With the military in control, Dalton must find who's behind it all before it's too late.