After Kaitlin presents a ruffled history to her class, she ends up getting assigned a tutor: a socially awkward school band member named Will Tutt. Meanwhile, Summer and Seth resume with their recent commitment to get married, despite how the two really feel about it. Julie tells Kirsten of the true identity of Frank that he happens to be Ryan's father just out of prison, while Sandy questions Frank's motives in Newport. When Sandy invites Frank over for dinner at their house, things don't go as well as presumed.