The Breakfast Club meets 28 Days Later in this YA thriller...After-school detention.On a Friday.Seventeen-year-old Stevie Myers can think of nothing worse. She wants to look ahead to the weekend -- a party out at the lake, quality time with her boyfriend TJ, a chance to unwind before midterms.Her sentence: one hour of detention, sitting in a stuffy classroom with some of Spring Valley High School's most notorious troublemakers.But halfway through that sentence, strange events begin to occur. Police helicopters buzz over the school. Emergency text messages appear. The principal announces a lockdown. And a cheerleader outside the classroom devolves into a mindless savage, right before Stevie's eyes.TJ Langley arrives late for football practice. Again. He parks his car, hurries onto the field, and finds a nightmare unfolding. Players are chasing other players around the field, attacking them. Biting them. Everyone seems to be going mad. And when his crazed former teammates turn on him, TJ has to flee for his life.Inside, Stevie relies on a group of students she hardly knows just to stay alive. Outside, TJ relies on his wits to reach the girl he loves. While all around them, the world is falling apart.