When the eighth grade civics class of Miami's Culver Middle School goes on a trip to Washington, D.C., Wyatt Palmer finds himself in deep trouble before the plane even lands because his best friend, Matt, has decided the men sitting behind them are terrorists and it is up to the boys to stop them.

Thirteen-year-old Q and fifteen-year-old Angela know their lives will become complicated when his mother and her father, wildly popular musicians, marry, but soon the teens are involved with spies and terrorists in Philadelphia, Pennsylvania.

Everywhere they turn, Ashley and Bryce find mysteries. Ashley seems to have a secret admirer. Bryce notices a suspicious vehicle near their home and school. When Bryce investigates, he comes face-to-face with a person he never expected to meet!

"When Quest (Q) and his stepsister Angela head to Chicago for their parents' concert, they uncover another plot by the terrorist group Ghost Cell in the Windy City"--

On September 11, 2001, Lucas skips school and takes the train to a New York City fire department to talk with family friend and firefighter Benny. But Lucas arrives at the firehouse just as they respond to a terrorist attack in which planes crashed into the Twin Towers.

Lieutenant Commander Ryan Cross and his Shadow Squadron are assigned to extract a rogue CIA agent from Iran, but the agent claims he had to sever communications in order to complete his mission to create discord between two separate terrorist groups--and he wants the Shadow Squadron to help him.

When Lucas decides to skip school because he wants to discuss football with a firefighter friend of his father, he finds himself caught up in the terrorist attacks on New York City.