These Milwaukee siblings will be competing in the season finale of 'LEGO Masters.' Here's a look back at their time on the show.

Nealita Nelson had a feeling she and her brother would make it all the way to the finale of "LEGO Masters."

That feeling of hers would end up being spot on.

Nelson and her brother Paul Wellington, who both grew up on Milwaukee's north side, are one of three teams that will be competing in the show's Season 4 finale, which airs Thursday night on Fox.

"I know just how talented we are," Nelson said. "But, actually being here, it's mind-blowing. That's what it is. It's just like, 'Wow, we really made it this far.'"

With all the strong competitors they've been up against, Wellington said he didn't expect to be in this position "at all." The competition started with 12 teams of two. Actor and producer Will Arnett, the show's host and executive producer, called them the "best LEGO-building teams on the planet" in Episode 1's intro.

"The key is, we played the game," Wellington said. "We listened to the judges. That's how we got where we are today."

The winning team will receive $100,000, the title of LEGO Masters and a LEGO trophy. Plus, they'll see their final build transformed into a set, which will be displayed at a LEGO flagship store, a news release said.

"It would mean so much to me, and for our family," said Nelson, who still lives in Milwaukee. "It would just mean the world. And, to our community: It just shows where we came from. We're not letting our environment control where we end up in life."

We caught up with the siblings ahead of the finale to take a look back on their season, from their favorite builds to their funniest moments. And, there's a sneak peek of Thursday's episode, too.

How 'LEGO Masters' Season 4 worked

On every episode, a different brick-building challenge awaited the teams. Before the finale, the teams had done nine total.

At the end of each episode, one team was credited with the winning build. Wellington and Nelson, both Rufus King High School grads, won Episode 6's challenge for the lifelike telescope they constructed.

In the next episode, they came in second for their big, bold, luxe-looking duffle bag.

"I felt totally happy and really proud about how we designed the telescope," said Wellington, who has bachelor's and master's degrees in architecture from the University of Wisconsin-Milwaukee.

"After that, the bag challenge, we were top two again," he said. "And, just to be up there. I was shocked, honestly ... To be top two back-to-back episodes, or challenges, is really, really impressive. I felt really excited to be there with my sister."

"I was super-excited and so proud of us," Nelson said. "I'm like, 'Yeah, we could win this.' It just gave us that extra little oomph that we needed."

Each episode also had a bottom two teams, one of which would be eliminated from the competition. One of the episodes had a tie, so no one was sent home that time. And, one team left the show due to health reasons.

The siblings' history with LEGOs

Wellington, 32, has been building with LEGOs since he was 3 or 4 years old.

The first set he ever got was a city. He's been constructing buildings with plastic pieces ever since.

One of Wellington's best-known LEGO builds was his microscale city called "Brickville," which lasted from 2010 to 2014. It spanned 68 baseplates, which are 10-inches-by-10-inches each. The massive build — which grabbed the attention of the LEGO community — was displayed at the Brickworld Chicago LEGO convention three times, he said in a previous Journal Sentinel report.

Wellington has also been featured in the book "The LEGO Architect" by Tom Alphin for his model of the National Congress of Brazil by architect Oscar Niemeyer. That work, along with Wellington's microscale rendition of Frank Lloyd Wright’s Unity Temple were highlighted by the same author in Brick Architect.

After coming across Wellington's LEGO creations on Flickr and Instagram, "LEGO Masters" staff encouraged him several times to apply for the show, said Wellington, who now lives in the Cincinnati area. In 2022, he went for it.

With Wellington always being into LEGOs, Nelson, 24, has been around them her whole life.

"He was already like way ahead of the game by the time I got here," Nelson said in a previous Journal Sentinel interview. "But he showed me how to play with them."

Wanting to be like her older brother, Nelson got into brick building, too. She ended up falling in love with how she could show her creativity through builds, and how there were "no rules."

The siblings' favorite builds of the season were these

Wellington and Nelson share the same favorite. And, it's the telescope that won them a challenge.

During that episode, the teams had to take an item from "Arnett's office" and replace it with a one-to-one replica they'd build out of LEGO bricks. At the end, Season 3 winner Stacey dropped by to guess which items in the office were made from bricks. She had 60 seconds to do so.

"We were really able to show our strength with the build," Nelson said. "We were able to make the shape from normal, square bricks to actual rounded circles. That's a pretty difficult task to do, making squares into circles."

"You pushed yourself," judge Amy Corbett, a Senior Design Manager at The LEGO Company, told the siblings on the show. "And, you picked a complex item with that telescope. And, you totally nailed it."

Plus, Stacey didn't guess that it was made of LEGOs.

Another build that's up there for Wellington is the first of the season: A boat that paid homage to their home state.

The teams had 10 hours to construct a personalized, motorized party boat. Wellington and Nelson called theirs the "Dairy Ferry."

It had cow print on the side, an ice cream float pool and DJ Cheddar, who looked like a wedge of cheese.

"It was a really good way for us to represent Wisconsin and introduce the world to who we are and where we're from," Wellington said.

A favorite moment? Not necessarily. They enjoyed it all — especially this.

Neither sibling had a favorite moment on the show. They enjoyed it all, especially getting to know the competition.

"Honestly, I enjoyed the entire show," Nelson said. "It wasn't like an actual moment or something better than the other. I just liked being there with my brother, actually being able to build and being able to show off what we could do."

Wellington shared his sister's sentiment and added a shout-out to his fellow contestants. He said he learned so much from them, including new techniques.

"We're actually in contact with everybody still," Nelson said. "Everybody has a great relationship."

The contestants even have a group chat that goes off all day, every day, the siblings shared.

Funniest moments: Not knowing who Will Arnett is, a photoshoot and a race

Who is Will Arnett? Maybeee don't ask Nelson.

You'll get why in a sec.

This is what Nelson deemed her funniest moment on the show:

On the first episode, Arnett went over to the siblings to make their acquaintance.

"Are you as excited to meet me as I am to meet you?" Arnett asked.

"I am. Not sure about her, though," Wellington replied.

While Nelson said she was excited, she confessed she didn't know much about Arnett. And, he was ready to whip out his IMDb.

In a cutaway to a sit-down with the siblings, Wellington pulled the classic sibling "I told you so." He was teasing Nelson for not Googling Arnett ahead of time like he told her to. But, by that time, Nelson may or may not have already forgotten his name. Oops.

Nelson gave this moment second-runner up for her funniest: Modeling a boujee bag she and her brother built during a winter-y photoshoot. She sleighed, may we add — despite the fake snow Arnett was throwing at her getting in her eye.

Now, on to Wellington's.

In Episode 8, the teams picked an already-constructed sportscar and watercraft. They would have to use the bricks from both to make an new remote-controlled vehicle inspired by LEGO 2K Drive. The siblings made a swamp road vehicle.

Afterwards, the remote-controlled vehicles raced.

Christopher, who's on a team with Robert, kept ramming their shark vehicle into the siblings' one, which Nelson was operating. Later, Christopher would go after Team Kelly and Emily, who kept yelling "CHRISTOPHER!!!"

While the shark attacks were "annoying" in the moment, Wellington said, it was "quite hilarious" to watch when the episode aired.

What was the siblings' most stressful moment on the show?

The volcano episode. Period.

The teams were to pick one environment out of five options. That would be the theme in which they'd build a world, a myth, a legend and a volcano around. They also had to calculate where they'd want the lava to go when the volcano would erupt and build accordingly.

"We misunderstood the directions or the rules, so it just went downhill from there," Nelson said. "It was bad."

They realized that around hour 2 of 12, Wellington said, and they restarted their build.

"If you watch the episode, they were not featuring us very often because we were not talking to each other at all," he revealed. "We were quiet, working on our build."

With arctic ice as their environment, the siblings created "The Legend of Arctic Island" featuring a snowy-looking volcano. Their story was that a dragon lived alone there. When a group of sailors visited, the dragon vowed to protect them.

They were hoping the lava flow from the eruption would trigger a water wheel to spin and a minifigure to go down a zipline they built. It did.

And, despite the rough start, the siblings didn't even end up in the bottom two.

"Worst challenge, but we didn't go home," Wellington said.

"That's the best thing," Nelson said.

How have the siblings grown during their time on the show?

Wellington — who has been building in microscale for about 20 years — wanted to use his time on the show to prove to himself that he could build other things besides small cities. Mission accomplished.

"I'm not just a one-trick pony," he said. "I have talent to compete with some of the best builders in the world."

From a novice to a pro. That's what Nelson said her time on the show made her.

"I definitely learned a lot," she said. "It opened my eyes to a whole new world of LEGO."

She said she feels like she could even compete against her brother now.

The best — and most challenging — things about working with their sibling

Not being close for well over a decade, the siblings got to "rekindle" their bond, they said. That was the best part.

What was the most challenging part?

"Do we have time for this?" Wellington joked as his sister broke into laughter.

With Wellington being Nelson's older brother, she said he treats her like a little sister.

"He thinks he knows everything," Nelson said. "And, everything I say just goes in one ear and out the other 'cause he's the big brother."

But, once he saw what Nelson could do, "it got better," she said.

Wellington is used to doing builds solo. So, being on a team — especially with his sister who he hadn't built with in years — was definitely an adjustment.

But, after the fourth build, they found their groove, he said.

Something they learned about their sibling during the show

Nelson learned that her brother is "actually really, really funny" without even trying.

"Am I?" Wellington asked.

"Yes, you are!" Nelson affirmed. "You crack me up."

In the first episode, Nelson said she and her brother "definitely don't play" about their sleep. And, apparently, that's very true.

Because during their time on the show, Wellington said he learned that his sister is not a morning person — "at all." She needs to ease into the day, he added.

And, Nelson shared that Wellington takes naps very seriously, especially after a long day of building.

How to watch the 'LEGO Masters' Season 4 finale

The "LEGO Masters" Season 4 finale airs at 8 p.m. CT Thursday on Fox. The episode will also be available on the Hulu streaming service starting Friday.

A sneak peek of the finale

Some very special surprise guests came to set for the finale. In Wellington's and Nelson's case, that meant their mom, as well as Wellington's wife and two kids.

After not seeing their loved ones for more than six weeks, Wellington said it was "overwhelmingly amazing to see them."

"I was just super-excited to see the family come in," Nelson said. "I just felt like it was another little kick, like 'We got this.'"

Not only did their relatives offer them support, they got in on the action, too. But, you'll just have to tune in to see how.

"All the builds in the finale are going to be great," Wellington said. "Just tune in to see who actually wins."

"This is the moment everybody's been waiting for," Nelson said.