The investigators propose treating a sample of 40 patients with 3 cycles of induction mFOLFOX6 chemotherapy over six weeks followed by standard chemoradiation and surgery. The investigators hypothesize that patients who undergo induction chemotherapy with mFOLFOX6 prior to standard neoadjuvant chemoradiation and surgery will have a lower rate of distant disease recurrence compared to standard neoadjuvant chemoradiation and surgery.