Plot summary
Diplomatic difficulties arise when France takes an American agent into custody just before a US state dinner for the French. Elizabeth is ultimately able to smooth things over by inviting France to join Five Eyes. With cooperation from French intelligence, the US attacks a site in Algeria where the terrorist leader and his lieutenants from different regions are meeting and is able to take into custody multiple terrorists, as well as their computers and other electronics. Elizabeth's office in the State Department is vandalized by their stalker. The FBI is able to identify the vandal and use him to bait the stalker into making a payment through an anonymous app while they are watching its traffic. The culprit, an influential and wealthy party member, is arrested.
Credits
Adapted from Wikipedia contributors, Madam Secretary season 3. HTML formatting and reference markers removed.