Mike is going back to his roots and helping families, along with his kids, Michael and Sherry. At a home they dub The City Barn, they plan to fix the weathered roof and make the property more accessible for a 13-year-old who is battling cancer. When the reno is delayed because of structural issues, the Holmes team begins a second job at The Flood House and uncovers how a little leak turned into a nightmare for the homeowners.

The Twice Done House's troublesome fence, windows and caulking are done right for the first time, and Michael brings the homeowner over to show her the progress; The Half Done House becomes the Fully Done House and the family is welcomed home.

Mike shocks the owner of The Twice Done House after discovering mold in her attic; the exterior of The Half Done House gets a major facelift, while Sherry and designer Kimm shop for quartz for the bathroom and fireplace.

Mike takes the homeowners through The Half Done House to reveal all of the issues discovered during demolition; Michael and Derek make a sound diffusion board for a music room and prepare to return a healthy home to its owners.

MJ's plan for the hot tub are dented by cracks in the foundation. Mike oversees the new walls on the second floor. MJ decides to not tarp the roof, which dampens Mike's mood.

Police are called to investigate after Michael makes a startling discovery at The City Barn. Then, Mike reveals all the Toxic Townhouse's issues to its owners, and the family's newest addition is introduced to the crew.

Work continues on the Twice Done House as the crew finishes installing the flooring and the kitchen; Mike must take care of a health issue, leaving Sherry and Michael to put finishing touches on the renovation.

Structural issues at their two clients' houses means Mike and Michael must split up and tackle the jobs separately. Michael takes on the roof and other problems at The City Barn, while Mike uncovers unsettling complications when taking down a load-bearing wall at The Flood House. Later, Sherry meets with two apprentices to add to the crew.

Mike meets a woman who needs help tackling projects that have accumulated since her husband passed away 10 years ago; at The Half Done House, Sherry teaches the apprentices as they frame out a show-stopping fireplace.

Mike and the team begin a third project and declare it The Toxic Townhouse after a home inspection uncovers terrible toxic elements and a dangerous pipe issue; then, the team makes another disturbing discovery at The City Barn.

The Flood House is close to completion, and the showpiece gas fireplace with a custom mantel brings one of the homeowners to tears; more structural issues arise at The City Barn, creating greater challenges than Mike and the team expected.

Mike and Michael figure out the open-concept dilemma at the Suburban House and turn their attention outside, where their plans for a spacious new deck come up short. They must quickly find a solution before the fast-approaching open house arrives.

Mike and Michael buy a bungalow in the country that sits on five acres with a barn and two-car garage. It also has major water issues, leeching bed woes and a flooring battle that won't be swept under the rug.

Trusses go up at the river house until MJ learns that the permits for the new build have not yet been approved. Mike goes to the council meeting hoping to hear good news, but it's a waiting game in the meantime. Back at the country house, Mike and MJ welcome their designer BFF Sarah Richardson, who offers some good advice. MJ starts getting pre-wedding jitters as his big day approaches.

The leaching bed is replaced at the country house, and work progresses until Mike and MJ find out an open permit remains on the barn. Back at the river house, Mike decides to hire a designer for the first time, but he has a tough time handing over some control to a new member of the team. And the big day finally arrives when MJ and Lisa get married in a picturesque setting -- as long as the pounding rain holds off.

HGTV Canada Designer Sarah Richardson talks tiles with the boys, and MJ is inspired to make some bold choices for the bathrooms at the Country House. Will his business partner agree or will it be back to square one? Inside the Country House, flooring takes center stage as hardwood, tile, and carpet are laid. Over at the River House, fencing and finishes touches are taking place as Mike and MJ prepare to say goodbye to the Thousand Islands -- for now.

Mike finds a potential investment for Michael and himself, but the property is three-and-a-half hours away on St. Lawrence River. Things get even trickier as structural issues accumulate, causing stress levels to rise and the budget to go off the rails.

Mike and Michael Jr. take things to the next level as they decide to go into business together. They purchase an outdated, suburban property and face a wonky layout, too many stairs and open-concept headaches.

Mike Holmes faces uncharted territory when the homeowner who needs his help is none other than his son, Michael Jr. Michael's modest renovation ideas are turned upside down by Mike's ambitious plans to gut his bungalow and add a second story.

Tensions run high as Mike and Michael Jr. run into a revolving door of disagreements, including the second-floor layout, exterior brick choice and even the necessity of a dishwasher. Then, after months in the making, it's all Holmes on deck to complete the house before the big reveal.

Mike’s open concept vision for the Suburban House hits a structural snag. Will MJ be able to rein him in or will the budget take another huge hit? Thankfully the kitchen layout is something they can both can agree on. A major issue arises for the deck at the Country House. And over at the River House, the fun doesn’t last for long as Mike throws another curveball at MJ -- one that could have serious repercussions for their business plan.

HGTV Canada Designer Sarah Richardson is back at the Country House with some valuable advice on the design of the master en-suite. Meanwhile, over at the Suburban House, the Holmes men use some cool technology to improve the energy efficiency of the home. While the push is on to get the interior of the River House completed, there is added pressure for MJ who wants to surprise his dad with the finishing touches.