HBO unleashed a truly spectacular trailer for Westworld Season 3 (seen below), but in true Westworld form, that was only half the story. While yesterday’s trailer is the official trailer for the new season—which finds Dolores (Evan Rachel Wood), Bernard (Jeffrey Wright), and Maeve (Thandie Newton) venturing out into the real world for the first time—a link to a different trailer was hidden on a viral marketing website.

Check out the hidden trailer below. Westworld Season 3 begins on HBO on March 15th and consists of eight episodes.

The sci-fi strangeness returns March 15.