The O.C.: The Secrets and Lies

Julie and Dr. Roberts spread the news of their engagement. Marissa and Julie end up as houseguests as Summer's place, and Marissa begins to hang out with Volchok's rough-and-tumble crowd. Meanwhile, Seth continues to worry about Marissa, putting a damper on Ryan's burgeoning romance with Sadie, though Kirsten has a plan to show Seth a fun time.