Holly is introduced at the outset of the series as one of the best friends of Summer Roberts and Marissa Cooper. After the fashion show Holly holds a party at her house as a reward for their good work for charity. She tells Summer that she thinks Ryan Atwood is cute. At the party people are doing drugs and drinking alcohol. She is then seen with Summer carrying Marissa who has passed out due to alcohol. They can't find Marissa's keys to let her in her house. They can't wake her parents as Marissa's dad would go ballistic. So they leave Marissa passed out on Marissa's driveway.