How do you tame a force of nature? Now that Marcus has settled into the den, it's time to figure out how he can best put his new gifts to use on the streets. But that's easier said than done when his lung function proves more powerful-and volatile-than anyone expected. Brady's still convinced that Marcus belongs on the team, but when more than one attempt goes spectacularly wrong, he's not sure how long he can keep the teen believing it. Will they find a way to control the overwhelming force he wields? Or will Marcus decide the world is better off without his help?