Trey's dreams of becoming a hot-shot detective - like his hero, Trent PistolA" Gripp from Black Ace magazine - look like they might be coming true. The mysterious accidentsA" and late-night phone calls at his Gramps's ranch in Kansas certainly needs investigating. But then school starts and it looks like case closed. But little does Trey know that his vacation snapshots have caught on film a top-secret plot. Like every good Private Investigator, trouble seems to follow Trey wherever he goes - and this time it's tailing him all the way home to Chicago - and onto the city's meanest streets.