Official Synopsis:

THE VAMPIRE DIARIES — “Blood Brothers” 8/7c

While Stefan (Paul Wesley) struggles to come to terms with his past, both he and Damon (Ian Somerhalder) reveal parts of their history to Elena (Nina Dobrev), until she finally learns the truth about how they became vampires. Pearl (guest star Kelly Hu) has an ugly confrontation with Johnathan Gilbert (guest star David Anders). Damon and Alaric (Matt Davis) try to find a mysterious invention before Johnathan does.