When Teddy lapses into a coma, Alex seeks a renowned doctor (Stephen Collins) to perform surgery that may save her sister's life. Meanwhile, Cat follows the investigation into her mother's case.

Alex has a surprise reunion with her college boyfriend; Georgie gets an unexpected visit from Trevor (Ryan Francis); and Cat gets an uninvited houseguest---Reed.

Teddy, suffering from memory loss, leaves home when she thinks the family doesn't want her around. Meanwhile, a photo jars Alex's memories of an incident from her teens that she'd like to forget.