Matt Davis, Nina Dobrev Matt Davis, Nina Dobrev

Mystic Falls celebrates Elena's birthday when The CW drama returns September 15. But cake is the last thing on her mind with Stefan missing and Jeremy seeing his dead exes, who could wreak havoc on the event.

"Elena and Alaric discover new reasons to be concerned about Jeremy's behavior," says Vampire Diaries exec producer Julie Plec. Party pooper!

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