Dan becomes frantic after Theresa fails to show up to their wedding, and suspects that her investigation into the Derek Rogers murder led to foul play. Emma suspects that Ted might be involved with Theresa's disappearance, but doesn't want to tell Sutton or Ethan until she has proof. Meanwhile, Ted learns about the growing relationship between Alec and Kristin and runs to Rebecca's arms, and Jordan agrees to spy on Rebecca for Alec.