Sarah came to town to take care of Audrey Hardy after she had had major brain surgery. When she arrived in Port Charles she instantly won the heart of Lucky Spencer, and they became close friends. Soon after she met Nikolas Cassadine and their initial encounters left a lot to be desired (Sarah thought he was arrogant). Shortly after Sarah's arrival, resentful younger sister Lizzie arrived. Lizzie plotted against Sarah for months, even planting test answers in her backpack, but she eventually stopped.
After getting to know Nikolas better, Sarah began developing feelings for him, and they were seriously dating. Then Nikolas was shot in the throat at Luke Spencer's club and consequently suffered a stroke, which caused him to lose the ability to speak properly. He was quite angry and depressed, and this crisis put great stress on his relationship with Sarah. He refused to see her or speak to her for months.
Sarah became quite manipulative, asking Emily to deliver notes for her, then telling the Q's of Emily's secret journeys to Wyndemere once she began to fear Emily and Nikolas were growing too close. This move backfired, as he grew closer to Robin Scorpio, and lost any interest he ever had in Sarah. The two then broke up.
Sarah informed Lucky he could date her if he wanted to, but he was more interested in her sister Liz. Liz had changed after her rape, causing her and Sarah to become much closer. When Audrey arranged for Sarah and Liz to visit their parents in Europe, Sarah left Port Charles. She returned in early 2002, getting a job interning at the hospital. The old tensions with Liz that were mended before she left town started beginning to flare up.
Sarah had ignored Lucky during her last stint in PC, but in her time away he had grown into a hunky young man. Sarah was deeply drawn to him and although neither she nor Lucky wanted to hurt Elizabeth, they began seeing each other behind her back. She found out and cut them both out of her life. Sarah now had the chance to openly date Lucky, but the magic was apparently gone. Sarah vanished from town and when last mentioned by Audrey, had returned to Europe to spend time with her parents.
In April 2013, Sarah was said to be living in Monterey, California.