S2·E1 Doorway to Hell

Lewis Vendredi was defeated in the previous episode Bottle of Dreams, but he has another plan. Vendredi is using a mirror that he prepared before his death, hidden away in an old home that the cousins were unaware their uncle owned. The mirror will open a doorway to hell, and let Lewis escape. Vendredi possesses the body of one of two escaped convicts who has fled to hell. Jack must enter the doorway and destroy it from within, which he manages to do.