With her father gone and her family dealing with financial problems, El transfers to a new school, where she falls for one of the popular boys and then must decide whether to remain true to herself or become like the girls she scorns.
David and his friends, caught up in a new game called Spy Moves, must work fast to master the ropes when they are asked to investigate a flurry of real-life mysteries in and around their school and neighborhood.
David, having noticed his neighbor has been missing for over a week, decides to visit the old man's house and is greeted by a stranger whose identity David sets out to uncover before Halloween.
