Cathy McCabe sees her backyard for the first time since renovation and is skeptical of Lucas' ability to make her and the Koi fish happy.

Watch as the Lucas Lagoons crew sets up the beautiful koi pond in the "Swimming With the Fishes" episode.

Watch as a koi pond comes to life!

Watch as workers plant greenery around the pool featured on "Swimming With the Fishes."

Jane "Woman" Werley is the lead stone mason for the Lucas Lagoons crew, and she's here to offer some tips on creating your own botanical wonderland at home.

After leaving the entire project up to Lucas, the McCabes finally get to see their new pool complete with backyard aesthetics, but does Lucas' Koi pond design meet Casey's expectations?

Terry and Cynthia originally only wanted a new hot tub and deck, but Lucas has jumped right in to show them that he can do so much more to improve their deteriorating pool.

Watch a time lapse of construction at the Pankiw's Paradise pool!

The Pankiw's wanted a new deck for their backyard oasis - watch as the Lucas Lagoons crew pours the foundation.

It's time to finally reveal the completed pool to the Pankiws. Will they love the stonework that Lucas added?

The Martin family loves the Colorado vibes they've created inside their home, but they want it outside, too. Lucas' next job is create a snowy atmosphere in a hot place: Bradenton, Florida.

Steve and Lori had a vision: Colorado in their backyard. Lucas unveils that vision with a few tricks of his own: real snow!

See how the Lucas Lagoons crew completed the pool interior in less than 60 seconds!

Watch as John "Old Man" Messner puts the finishing touches on a rock wall.

Jane "Woman" Werley shows you how she builds a fountain feature for the Mountain Lodge Oasis.

Henry and Valerie Taylor are getting older, and there's one thing on their bucket list that they haven't crossed of yet at their new home: getting a pool. Lucas tells them he's going to deliver their dream, spa jets and all.