Because this was the mid-season finale of The Event, I was definitely expecting some intense action scenes - and the writers did not disappoint.

Among other developments, "Everything Will Change" brought Sean and Leila one step closer to finding Leila's sister Samantha.

After attacking Berg, they searched his pockets and found a card and syringe.  Of course, Berg refused to talk and Sean finally grew a pair and injected him with the medicine. 

I found it pretty unnerving watching Berg change into a really old man right before our eyes. Before this man died, he told Leila and Sean where they must take him in order to save him: Willow Brook.

Leila and Sean knew that this is where they must head in order to find Samantha. Before they left, Paul came out of nowhere to give them fair warning. Why was he begging them to stop the hunt? Who is this guy?

When Sean and Leila finally broke into the facility, Samantha and everyone else were nowhere to be found. All that was left was a bunch of burned papers and childhood toys.

Obviously, this is the place where they were keeping the girls, but it's funny how Leila points to her name on the wall as an indication that this is where Samantha was. As if we all needed this clue to confirm everything we already knew.

The biggest cliffhanger had to be Sean and Leila finding a couple files, first on Paul and then on her father. They showed pictures of how both Paul and Michael never aged over forty years.

Wouldn't Leila notice that her pops never looked a day older? If this means Michael is "one of them," what does that make Leila? Half human? Do you think she has any powers?

Meanwhile, Sophia met with both Thomas and Isabelle for a nice cup of tea. This whole scene was a bit off, considering last week Thomas and Isabelle did try to kill Sophia. But Sophia's intentions were to find out Thomas' agenda.

Agent Lee probably is one of my favorite characters on this show. He's everywhere and into pretty much everything. The President and Blake worked closely with him this week to find the aliens, while he worked closely with Sophia to stop whatever Thomas was up to.

We know Thomas and Isabelle have a separate goal in mind. One that includes killing many people. What we don't know is: What in the world do they want?!?

My best guess would be sending a signal to their kind, telling them to come to Earth. This would make the whole idea of time-traveling, future humans irrelevant. Do you think Thomas is after mass destruction? Maybe a bit of global domination?

As much as I want to give the President some razzing, he's just as in the dark about all of this as the rest of us. He doesn't have the faintest idea what is going on in his country or the rest of the world. I don't know how he will eventually get Jarvis to talk, but that is his window of opportunity.

Yeah... so Jarvis painted the President into a corner, but this is Martinez's chance to really prove that he's the right man to lead our country. Hopefully, Martinez will learn to play a little dirty and get the answers he needs.

Overall, tonight's episode left us with plenty of unanswered questions. I can't wait for this thrilling show to come back from its hiatus (on February 28) so we can find out what happens next.