Time-Turner Destiny

On the train to go to his 7th year Harry finds himself in the Marauder's Era. Now stuck in the past can Harry defeat Voldemort again? With the help of James, Sirius, Remus and others can Harry stop the War before it has even started? Harry has to deal with Horcrux's, and saving people along with his 7th year class work. This could have only happened to Harry Bloody Potter. COMPLETE