Westworld season 2 episode 10 finale trailer: 'This is the end'

At one point, the park is glimpsed with some sort of crack in the sky

HBO has released the trailer for the final episode of Westworld season 2, with William declaring: "This is the end. Nothing else is in the way now."

It opens with the familiar phrase "freeze all motor functions", but uttered by the unfamiliar voice of Dolores.

A fast-paced montage follows that teases a number of intriguing visuals, as we glimpse James Delos in the labs, Dolores and Bernard standing before what looks to be a vast archive or library and later in Delos' fidelity test apartment, plus Logan is seen through flashback next to a pool and leading Dolores and Bernard around.

Most curiously, we get a couple of shots with the world appearing to have a crack in it, Clementine slowly advancing towards it on horseback.

Westworld's plot has been even more labyrinthine in season 2 than in season 1, and has an awful lot to answer in its season climax.

Entitled 'The Passenger', the feature-length finale hits HBO in the US and Sky Atlantic and NOW TV in the UK on Sunday night.