500 Years of Solitude

Face to face with a new crisis, Katherine remembers giving up her daughter in 1490. As her health deteriorates, Stefan makes Elena, Caroline and Bonnie aware of her condition. Damon, Matt and Jeremy remember Katherine's more notorious moments. Nadia has a plan that will protect her mother forcing Stefan and Elena to help her out. Caroline realizes she hasn't filled Elena in on the latest gossip. Elena and Katherine share a unexpected connection.