 When someone unleashes the students  time capsule upon Tree Hill High, Lucas and Mouth must confront a person from their past. Brooke has to deal with the revelation that secrets aren t the only things she exposed in the time capsule. Dan learns to forgive Keith. Haley is forced to reconcile the man Nathan was before with the man he has become, and Peyton s Breast Cancer Benefit Concert at Tric features performances by Haley, Jack s Mannequin and the return of Fall Out Boy.