The episode was written by Elisabeth R. Finch and Holly Brix and directed by Joshua Butler.
The episode starts with Tyler (Michael Trevino) waking up on the Traveler's camp where he finds himself chained up.
He then hears Maria saying that Markos (Raffi Barsoumian) found a way to remove the magic from Mystic Falls and that he is now on the search for the doppelgangers.
Tyler shifts and runs to the Salvatore house to tell them Markos' plan.
At the Salvatore house, Damon (Ian Somerhalder) tries to locate Enzo (Michael Malarkey) with the help of Luke (Chris Brochu) to no avail.
Tyler interrupts them to tell them Markos' plans and that he is after the doppelgangers, so Damon and Stefan decide to go with Elena (Nina Dobrev), Caroline (Candice Accola) and Luke at a place where Luke will cloak them with a spell and Markos will not be able to find them.
Things get awkward, Stefan does not answer the question and keeps saying that he did not lie about Enzo, while Elena prefers to leave and go take a bath.
Damon believes that it's the ghost of Caroline's father, but doesn't understand why he would try to hurt Elena, so she finally tells him the truth about Enzo.
Stefan manages to remove the stake and Damon forces him to take Luke and get out of the burning barn, while he tries to convince Enzo that he will find a way to bring him back to life since they did it in the past with Jeremy and Bonnie.
While they are searching, Maria appears with other travelers and they get Julian's body, so Jeremy and Bonnie have to go back home without it.
Julian takes over again saying: "I assume you did not find my body" while everyone looks at him terrified to the idea that Tyler is gone for ever.
"In "What Lies Beneath" our crew did everything they possibly could to rival against the travelers, while dealing with Enzo's ghost doing it's [sic] best to kill them all.
"This outing did a solid job furthering Caroline's obvious crush on Stefan; evolving Damon as someone worthy of being loved; and scaring the crap out of anyone who enjoys a good ghost story."
"[6] Caroline Preece of Den of Geek gave a good review to the episode saying that the show is built in secrets.
Preece also comments on the love triangle between Stefan, Elena and Damon and the possibility of something new to start between Stefan and Caroline: "I admire the show’s restraint with [the love triangle], having another pairing develop over multiple seasons while we were all distracted with the ‘epic-ness’ of the central trio’s dysfunction.
Elena and Stefan seem to have a solid friendship in the works, which is a nice change from the awkwardness of months past.