Former CIA analyst, Jack Ryan, is in England with his family on vacation when he suddenly witnesses an explosion outside Buckingham Palace. It is revealed that some people are trying to abduct a member of the Royal Family, but Jack intervenes, killing one of them and capturing the other and stops the plan in its tracks. Afterward, he learns that they're Irish revolutionaries, and the two men are brothers. During his court hearing, the one that's still alive vows to get back at Jack but is...