"Still reeling from the fact her parents have disappeared, Sarah starts the school year with her new friend Jackie Jenkins. When Sarah learns the school has been bombed, she's filled with dread. Uncle Walt is a teacher, and he was in the school when the bomb exploded. Taking matters into her own hands, Sarah decides to search for him. The rest of the Super Spies are right behind her. When a fireman chases them away from the school, Sarah becomes suspicious. She decides to investigate. The FBI arrives on the scene. Sarah realizes this bombing could have even bigger implications. Searching for the bombers, Sarah is introduced to the world of terrorism."