The birds that flew out of the sinkhole looked otherworldly, so I should have figured out the sinkhole had a time portal connection to it, but I didn't figure this out until later in the episode when Gavin (the husband) found the rock with the red handprint on it. I think the birds and this rock made me realize that Gavin and his wife Eve were in the same place but at different times. This is a cool idea for us as viewers to get to watch.
I liked how Eve checked her cell phone after falling forever into this other-world. "No cell service."

But the the stupid dialogue begins. "Do you know anything?" Come on, you all just got sucked into a sinkhole, fell hundreds, if not thousands of feet...and nobody died. Plus there's a glowing green neon rip in the sky...as if somebody would shout out, "got it all figured out everybody, gather round and let me fill you in"! Then wasn't happy to see the cop as someone with obvious inner rage issues...then later is caught stealing food. Ugh.
Stupid thing #2: The science people hold a press conference half a block from the edge of a sinkhole. Now I'm no scientist, but I'm guessing the ground is pretty unstable that close to the sinkhole and chunks of land might fall into the sinkhole at any point. Including where you and your microphone stand are located.
Josh and Riley: young love storyline to follow? (Thank you for saving my life, Riley...bats eyelashes..)
Stupid thing #3: Dad's crazy because he has visions. Nobody around him has heard of psychic phenomena of various kinds?? Also, why can't the Dad just say that he has the ability to see things? (They already think he's crazy, why not just share everything he can until they realize he is sane and has an ability?)
Eve and Ty: middle-aged love storyline to follow? (I'd kind of like her to end up with someone who is not suicidal, but hopefully there's something to his story where this will make sense).
Stupid thing #4: Can't somebody put something under Jack's head to act as a pillow? Isn't he suffering enough with a wolf bite to the stomach to have his head smack against cold, hard metal for hours on end?
Stupid thing #5: RUN! Eve screams at the appearance of a sabre-toothed tiger? Umm...why not just jump into the ambulance behind you and close the doors shut? I'm guessing ol' sabre-tooth can out-run the three of you.
Stupid thing #6: In the end credits, in big capital letters, the words "WHERE ARE THEY" appear. Umm, between the sabre-tooth tiger, extinct gigantic birds and the caveman in the wolf-fur apparel, we've figured out they are now living far in the past.
Oh, and bonus stupid thing: when they get their bearings at their new location, surely there's somebody there with organizational skills to set up a makeshift hospital area and encourage people to help there, or establish a food and shelter volunteer group and a security/weapon-finding (big sticks if nothing else) volunteer group to defend themselves if necessary. Surely there are other people like
@HeatherC and me who watch these shows and know that being prepared is the first thing everybody needs to work on?
So it may sound like I hate the show already. But I don't...the sneak previews look really great for upcoming episodes. My problem is the writing. And you can tell the actors playing these characters are much smarter than who they are playing. That in real life, the actors would make MUCH better decisions. So the sloppy writing from the very start is a disappointment. But I'm still looking forward to this ride!