Tucker is the back up player for a senior tailback named Marty Wiggins, and Tucker is one of the last people to talk to Wiggins before he dies on the football field of unknown causes. Freaked out by what Wiggins said and how he looked, Tucker convinces his best friend, Quinn Carr to go for a late night bike ride. The boys see some kind of huge dark shadow out over the water, and then witness an incredible explosion. The next day, military personal descend onto their island, and quarantine the entire island indefinitely. Shortly after that, a second citizen dies in a similar fashion to Wiggins. The boys want answers, but no one is giving them any.
This is a fast moving adventure - one that I think decent male readers will enjoy.