Action-packed book about Luke Stone, former special FBI agent, who, at the request of the President of the US, gathers a team and flies to Belgium to investigate a rumor that there's a terrorist plot afoot to steal nuclear warheads housed there and use them against the free world.
While the terror plot was easy to follow, the backgrounds of the characters were apparently developed in the first three books in the series, so I was at a loss at times. For example, the President was the former VP who came to office when the US military staged a coup ( crushed, in part, of course, by Luke and his team). Her husband has been outed as gay and has moved with their two daughters back to their family home CA. Luke's wife, Becca, is dying of pancreatic cancer and plans to have her rich parents fight Luke for custody of their 12-year-old son. But, I was unsure why she was so bitter. Because he was a spy and puts the country above his family? There was some mention of her and the son having been kidnapped, but I didn't know if that played into it or not.
I read the synopses of the first three books and they seemed similiar in plot: country is in danger of attacks by terrorist and Luke and his team save the day.