Creator, executive producer and co-showrunner David Appelbaum teases to EW where the mysterious drama is heading.

Warning: This article contains spoilers about Tuesday, November 30’s episode ofLa Brea.

Have the events of theLa Breafinalesunkin yet?

LA BREA

Rohan Mirchandaney as Scott Israni, Jon Seda as Dr. Samuel Valez, Veroncia St. Clair as Riley Valez, Jack Martin as Josh Harris.Sarah Enticknap/NBC

But he wasn’t the only one to disappear into the light.

Indeed, sinkhole/portal hopping was pretty much the theme of the episode.

Like we said, so.

So we turned toLa Breacreator, executive producer and co-showrunner David Appelbaum for some answers.

I started asking so many questions: who are the people that fall into the sinkhole?

Where do they lead?

Who are the people that are left behind?

So how far ahead have you planned?

Do you have an end game in place for this show?

One of the great things about this show is that it had a very long gestation period.

This is pretty much an action show with some drama in there.

What has been most challenging about shooting it?You filmed in Australia, right?

Shooting in Australia has been an amazing experience.

They have this beautiful natural terrain that really suits the environment of 10,000 B.C.

The challenge is really the scale of the project.

We have 13 series regulars.

We have a huge computer graphics/visual effects budget.

There’s just a lot of moving pieces.

Those are probably the biggest challenges, the scale and scope of the project.

Basically, it moves at a good pace.

That was always one of the driving ideas of the show, that the show is a thrill ride.

You never know what’s around the next corner.

So that’s always been one of the driving philosophies of the show: to push forward to surprise.

How much did the cast know throughout season 1?

Did they know in advance where the season ended?

People wanted to know, but they were generally respectful of the writing process.

The luxury of a second season is being able to get into the backstories of your characters.

Will there be flashbacks in season 2 to provide that context?

We’re always open to doing flashbacks.

It’s never going to be a show based around flashbacks and we’re definitely open to that idea.

Also, unveiling new mysteries and layers to the world that they’re in.

Those two ideas will definitely be at the center of the show in season 2.

So will we get to see the ’80s next season?

If Isaiah made it there?

Okay, let’s talk about some of those finale cliffhangers.

Is Marybeth (Karina Logue)really dead?

I thought maybe it would turn out she’s survived.

She is dead, yes.

How much is that going to mess up Lucas (Josh McKenzie)?

He’s gonna have to forge some new relationships then, since he’s pretty much alone now.

Yeah, there will be new people that he’s forming relationships with.

One of the fun things about ensemble shows like this, is the pairings of characters.

He’s going to be with characters you might not expect him to be with.

Josh McKenzie, the actor who plays Lucas, is such a dynamic actor.

But we’re gonna go to the building, we’re going to go inside of it.

We’re going to to see … who was there.

And there are going to be a lot of fun twist and repeat.

So we’ll learn more about Silas (Mark Lee) and Aldrdige’s connection?

And the scientists in general?

So if Gavin has now arrived in 10,000 B.C.

at the same time?

It’s something we’re always interested in exploring on the show.

I don’t want to give away exactly where the story goes.

We’re open to lots of different possibilities, but I can’t say what will happen to them.

This interview has been edited and condensed for length and clarity.