From theNew York Timesbestselling author ofThe Unteachables, Gordon Korman, comes ahilarious new high-concept friendship story in the vein of Back to the Future. Perfect for fans of KormansRestart.Mason and Ty were once the very best of friends, like two nerdy sides of the same coin . . . until seventh grade, when Ava Petrakis came along. Now Mason can trace everything bad in his life to that terrible fight they had over the new girl. The one thing hed give anything for is a do-over. But that cant happen in real lifecan it?As a science kid, Mason knows do-overs are impossible, so he cant believe it when he wakes up from a freak accident and finds himself magically transported back to seventh grade. His parents arent yet divorced and his beloved sheepdog is still alive. Best of all, he and Ty havent had their falling-out yet.It makes no logical sense, but Mason is determined to use this second chance to not only save his friendship (and his dog!) but do other things differentlylike trying out for the football team and giving new friends a chance. Theres just one person hell be avoiding at all costs Ava. But despite his best efforts, will he be able to stop the chain of events that made his previous life implode?