The end is near for "The Leftovers."

HBO unveiled the trailer for the third and final season of the critically acclaimed drama. It's a haunting, disorienting video, set to the Beach Boys song "Don't Worry Baby." If you didn't think the Beach Boys could sound grim, well, you were wrong.

The trailer shows glimpses of Kevin Garvey (Justin Theroux), seemingly back to police work in Jarden, Texas. Carrie Coon also returns as Nora, as does Regina King and Kevin Carroll as the Murphys. But much of the season will be set in Australia, where Kevin travels to see his father.

It looks like the show will also check in on familiar faces, including Amy Brenneman, Christopher Eccleston, and Liv Tyler.

Here's the official synopsis released by HBO:

The new season, created by Damon Lindelof and Tom Perrotta, finds the Garvey and Murphy families coming together as they desperately grasp for a system of belief to help better explain that which defies explanation. The world is crackling with the energy of something big about to happen, a corresponding bookend to the Sudden Departure that sent them all spinning years earlier, bringing their journey Down Under.

The eight-episode final season of "The Leftovers" premieres Sunday, April 16 on HBO.

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