Ian Somerhalder’s Damon immediately realizes that the Stefan he’s talking to is not his real brother but a lost soul from the phoenix stone.
In the promo for the upcoming episode, it appears that the fake Stefan is really far from the original one as he is seen destroying glass windows and killing people.
Damon tried to transfer the deathly scar that Stefan has in an effort to save him but failed because they were too late.
Zack Roerig’s Matt then calls in a favor for Elizabeth Blackmore’s Valerie to fly to Matt Davis’ Alaric to Dallas in search for a way to locate the real Stefan.
The real Stefan, on the other hand, will have to rely on himself to find his way back to his original body.
According to Spoilers Guide, the official synopsis for the episode states that Stefan will wake to find himself in a life or death situation in the aftermath of Damon’s fateful decision.
Stefan then sets off on a journey for his own survival with no choice but to confront a lifetime of irreversible damage Damon has done to their relationship.
Also, Rayna discovers a new threat as well and sets off on her own mission to locate Stefan before anyone else does.