HBO’s new sci-fi series “Westworld” has just released the synopsis for its pilot episode, which is already shaping up to be quite the jam-packed premiere.

The synopsis, which was shared by Slash Film, reads: “As another day of fantasy plays out in Westworld – a vast, remote park where guests pay top dollar to share wild-west adventures with android ‘hosts’ – top programmer Bernard Lowe (Jeffrey Wright) alerts park founder Dr. Robert Ford (Anthony Hopkins) about incidents of aberrant behavior cropping up in some recently re-coded hosts.”

“Meanwhile, in the Westworld town of Sweetwater, a rancher’s daughter named Dolores (Evan Rachel Wood) encounters a gunslinger named Teddy (James Marsden) in the street – but their predictable narrative is upended by the appearance of a ruthless Man in Black (Ed Harris) and, later, by a supporting host’s unscripted encounter with an artifact of the outside world,” the synopsis continued.

It’s not clear what the Man in Black’s motives are, but it would be smart for Dolores to steer clear of him.

Wood’s character has already been outed as a host, but other characters, such as Marsden’s Teddy Flood and Harris’ Man in Black, still remain a mystery. Wood told the L.A. Times that showrunners Jonathan Nolan and Lisa Joy wanted to keep certain things a secret for now so fans will pay close attention to the show.

“It’s a show you really want to pay attention to while you’re watching it. Everything means something,” she said. “I think when this series is done, your DVRs are going to break because everyone is immediately going to go back and re-watch the whole thing, and it will probably be better the second time.”