Among America's majestic mountains, comedian and actress Retta finds three ugly homes ready for a makeover.

Comedian and actress Retta heads to the sunshine state to check out a property that feels like the Titanic inside and out, an angled mess of a house with no walls and absolutely zero privacy, and a gigantic green box with a nasty backyard.

Retta takes an ugly hunt up and down the Pacific coast as she gets a tour of a linoleum-covered nightmare, a house with a staircase straight to hell, and an oppressively hot home with a huge built-in solarium.

Retta heads out into the desert to visit a broken-down cabin with a cat problem, a dust-filled dome, and a home stuck in the '70s; one of these ugly homes will move on to the finals and have a chance to receive a $150,000 makeover by Alison Victoria.

Retta visits the Great Lakes to find a batch of ugly houses that are vying for a $150,000 makeover by designer Alison Victoria; she gets an up-close look at a real-life Victorian dollhouse, a lake house with a funky odour and a former church.

After a coast-to-coast search, Retta announces which ugly-in-paradise home receives a $150,000 makeover; designer Alison Victoria takes over with a full gut renovation to deliver a life-changing improvement that leaves the homeowners stunned.

Ugly homes in the North vie for the chance at a $150,000 makeover from designer Alison Victoria; from a terrifying Mardi Gras-inspired house to an Earth-home fit for a hobbit, only one of the three will move on to the finals.

Retta tours three ugly homes in the West that are battling it out for the chance at a $150,000 makeover; from a sprawling party pad with funky decor to a tiny triangle-house where the walls feel like they're closing in, only one will make the finals.

Ugly homes in the Northeast square off for a chance at a $150,000 makeover from designer Alison Victoria; from a disjointed house built out of cylindrical towers to a home that's buried in angel decor, only one of the three will make the finals.

Retta tours three ugly homes in the South that are competing for a $150,000 makeover from HGTV's Alison Victoria; from a disco deathtrap that's short on safety features to a musty house embalmed in carpet and wallpaper, only one will make the finals.

Retta tours three ugly homes in the Midwest that are competing for the chance at a $150,000 makeover; from a ramshackle Victorian built a hundred years too late to a home with hideous hand-painted murals in every room, only one will make the finals.

Retta announces which house is the ugliest and crowns the winner of the Ugliest House in America; it's goodbye ugly, as the winning house is transformed with a $150,000 home makeover from HGTV designer Alison Victoria.

Three ugly homes in the West vie for the chance at a $150,000 makeover courtesy of HGTV designer Alison Victoria! It’s between a creepy and wood-carved world of whimsy, a tile-mad dwelling with views into every bathroom, and a cramped and convoluted hut.

Three ugly homes in the Midwest square off for the chance to win a $150,000 makeover, courtesy of HGTV’s design guru Alison Victoria! It’s between a bird-themed house, a turtle-shaped dome and a house that’s been half updated and half left for dead.

Three homes in the Southwest duke it out for a chance at a $150,000 home makeover from HGTV designer Alison Victoria! It’s between a shiny dome with a gross past, a former museum with a thing for skeletons and a castle held together with styrofoam.

Three ugly homes in the Northeast battle for the chance at a $150,000 makeover by designer Alison Victoria! It’s between an eclectic house full of panels, a church-like home with zebras on the walls and a retro red shed that has it out for its owners.

Three ugly homes in the Southeast vie for the chance at a $150,000 makeover by designer Alison Victoria! It’s between a house that’s a series of connected huts, a horrifying home in the middle of the woods, and a dated house with holiday decor year-round.

The summer road trip comes to an end as Retta crowns the Ugliest House in America! Then it's makeover time, with HGTV's Alison Victoria leading the charge to turn a nightmare house into the home its owners have always dreamed of.

Three ugly homes in the Midwest vie for the chance at a $150,000 makeover by designer Alison Victoria! It's between a bird-loving house, a house with too many kitchens and a former party pad that once housed reptiles.

Three ugly homes in the Pacific Northwest square off for the chance at a $150,000 makeover courtesy of designer Alison Victoria! It's between a house full of mirrors, a giant maze-like octagon and an outdated house full of random decor.

Three ugly homes in the Southwest battle for the chance at a $150,000 makeover by designer Alison Victoria! It's between a customized nightmare, a cowboy-themed dome under a mountain and a retro house with too many shag carpets.

Three homes in the Northern Region duke it out for a chance at a $150,000 home makeover from HGTV designer Alison Victoria! It's between a realistic stone castle, a colorful house made out of concrete and a '70s throwback with carpets galore.

Three ugly homes in the Northeast contend for the chance at a $150,000 makeover by designer Alison Victoria! It's between a house that was once a men's club, a home with an obsession for all things Italian and a crazy place with way too many shelves.

The road trip comes to an end as Retta reveals the winner of Ugliest House in America! Then, the winning house receives a $150,000 renovation from HGTV's Alison Victoria, transforming their once-ugly house into a once-in-a-lifetime dream home.

Retta will tour the first three ugly gems in the Midwest, including a concrete cave better suited for children than adults, a former bank with a bathroom built in the safe and an outdated brick house that looks like a pizza place.

Retta heads to the Great Lakes region, offering her unfiltered reactions to a boat that doesn't float, a home with carpet up the walls and a property easily mistaken as a UFO.

It's between a house full of dragons, a home where crazy art has taken over and a gaudy Victorian with a flair for the dramatic.

It's between a house where art has taken over the walls, a former church with a terrifying hole and a once-glamorous home with a homeowner in denial.

After crowning the worst of the worst, HGTV designer, Alison Victoria, surprises the homeowners with a spectacular $150,000 renovation.