Elizabeth must decide whether to use autonomous unmanned weapons or send U.S. soldiers to bring the mastermind of the UN gas attack to justice. Also, Blake is questioned by Senator…

Elizabeth’s landmark global climate treaty with more than 200 countries is jeopardized when China threatens to back out due to her meeting with an ailing Dalai Lama. Also, Henry worries…

When Elizabeth discovers that a terrorist bombing at an Illinois coffee shop was funded by someone with close ties to the Saudi government, she makes a bold move after the…