The Travelers linked Stefan to the doppelganger, and to keep Stefan from the pain of having his memory wiped clean, Caroline was forced to make a deal with the group. This week, Caroline will have to make good on her deal and go with Enzo and The Travelers to find Stefan’s doppelganger, who works as an EMT.
As Damon and Elena try to get back to some normalcy, they attend Jeremy’s parent-teacher conferences, and find out that Jer’s been having some issues at school. Later, Damon’s forced to tell Elena some bad news about Jeremy’s personal life.

What else does this show seriously have left to do, how many more regulars get killed and resurrected, how many more figures continue going off the heavy end killing characters, and then two weeks later its forgotten, how many times can tyler's character get shipped out of town.
It just seems like an endless cycle, the show hasn't really done anything truly new and exciting since the second season, when they introduced werewolf, hybrids and originals. I doubt they will actually introduce something completely new like say demons, shape-shifters or anything new.
I can see why Supernatural even if its bad these days, can survive 10 seasons, with some new supernatural villain each full year. I really do wonder how this display would of should they did go monster of the entire week on occasions.