Synopsis of "Original Sin" (5.03)

SECRETS OF THE PAST - When Elena and Katherine have the same dream that Stefan is endangered and desperately needs their help, they convince Damon to help find Stefan. However, their plans are foiled by a young mysterious called Tessa (guest star Janina Gavankar), who seems to know everything about Stefan's story. In flashbacks of a distant place and time, Tessa reveals shocking secrets of their past and what she has planned for the future. She also has a disturbing message to Damon about his own future. Silas obliges an accomplice to help search Katherine, prompting Matt to a confusing and dangerous situation risking his life. Finally, Silas reveals the reason why he is determined to find Katherine and Damon and Elena are faced with a disturbing new reality. Jesse Warn directed the episode written by Melinda Hsu Taylor and Rebecca Sonnenshine.