Dean and Sam investigate a series of deaths where the victims had everybody telling them the cruel truth about themselves, leading them to commit suicide. Dean is now wary of his brother ever since he remembers seeing Sam allowing the vampire to attack him. During their investigation, the brothers believe that someone is using Gabriel’s Horn of Truth to force people to reveal the truth unwillingly. However, after the suicide victims’ bodies disappear from the morgue, they research further and discover Veritas, the goddess of truth, responsible. Veritas poses as a news broadcaster due to her love of attention and also to target potential victims who wanted the truth. Verita’s spell affects Dean and while trying to rid himself of it, Dean receives a call from Lisa, who is forced to tell her thoughts about Sam’s return and Dean’s demon-hunting life. Dean takes advantage of the situation to question Sam about the night he stood by and watched him get attacked by the vampire, but Sam says he just froze and is appalled Dean doesn’t trust him. As Sam appears to have told the truth, Dean lets the matter rest and they both go after Veritas in her residence. They discover Veritas has taken her victims’ bodies in order to eat them as sacrifices. Both brothers are then knocked out by Veritas who ties them up and uses her powers to force them to tell the truth about how they feel about each other. However, when it’s Sam’s turn to tell the truth, Veritas discovers he can lie through her influence and tells Dean that his brother is not human. Veritas tries to kill Sam but he and Dean manage to kill her. Dean holds Sam at knife-point and demands he reveal the whole truth of who he is. Sam tells Dean that he really is Sam but finds that ever since he came back from Lucifer’s cage, he feels nothing and has no problems doing things that previously he would not have done, and then asks his brother for help with his condition. Dean appears to accept his explanation, but then throttles Sam and beats him into unconsciousness.
