While Marissa recovers in the hospital from her overdose, everyone remains concerned about her. Julie (recurring guest star MELINDA CLARKE) vents her anger at Ryan, blaming him for all of Marissa's problems and warning him to stay away from her daughter.Meanwhile, Sandy tries to get acclimated to his new job at an affluent corporate law firm. Kirsten is displeased about her husband's rekindled relationship with his attractive former colleague, Rachel Hoffman (recurring guest star BONNIE SOMERVILLE), who is once again his co-worker--especially when Kirsten sees Sandy and Rachel having an intimate after-work cocktail.Dr. Michelle Kim (recurring guest star ROSALIND CHAO), the dean of Harbor High School, is not happy about the prospect of having a student with a criminal background. She makes Ryan take a placement examination to determine whether or not he will be accepted into the school. Ryan risks his future at Harbor High--and his future in Newport--by leaving in the middle of the test to join Summer (recurring guest star RACHEL BILSON) and Seth in an attempt to save Marissa from being sent away to San Diego. Ryan's risky move could result in both Marissa and him being forced to leave Orange County.