Caleb (recurring guest star ALAN DALE) once again puts Kirsten in a difficult situation when he forces her to terminate Julie. After yet another crisis with Ryan, Sandy & Kirsten question their decision to bring him into their home. Meanwhile, Ryan & Luke become allies in their quest to protect Marissa from Oliver (recurring guest star TAYLOR HANDLEY). When Marissa discovers the truth about Oliver, a tense showdown ensues--and Sandy & Ryan must come to the rescue.