In this episode, each candidate must install a shower in their guest rooms. This project turns into a marathon challenge as we find some handymen working for over seven hours to complete it. Next, the group is trained to use a router. The pros regard this tool as the handyman’s secret weapon, but in the hands of Canada’s Worst Handymen, its many uses are utterly wasted. Finally, in the group challenge, one candidate acts as the reluctant foreman to conquer drywall and hardwood. By the time they finish, one handyman is named most improved, and a new candidate hangs their head in shame as this episode’s worst.

Our handymen are given a chance to let their creativity shine as they are given free rein to accessorize their rooms. Some handymen take this opportunity to show their creative flair – and others use it to hide their mistakes. Next, everyone must take a chair and build it according to flat-pack instructions in order to finish the kitchen furniture for the B & B. Once the projects are completed and the doors to the Bed & Breakfast are finally opened, see who is named the worst-of-the-worst and must bear the dubious title of Canada’s Worst Handyman.

When the production team visited the handymen at their respective homes, they noticed that none of the handymen had functional workbenches. Well actually, Desmond did – until he used it and cut right through it with a circular saw. Now, each handyman is charged with designing and building their own workbench – but the results are dubious at best! Next, see how Reno Rehab is driving these handymen up the walls – quite literally. The century-old mansion that they are renovating has walls that are full of holes in need of patching and it’s up to the hapless handymen to begin plastering their way to a smooth finish. Then, as they shrink-wrap the windows and work together to build a kitchen shelving unit, tempers flare and one person is ejected from the group project.

The ragtag band of DIY bootcamp inductees arrive at Handyman Rehab and prepare to be hammered and drilled on the basic principles of construction by Canada's Worst Handyman's tough-love experts. Relegated to their apartments, the first assignments begin - who will emerge as the star pupil, and who will end the episode as the worst in the class?

In this episode, our bad builders hit the deck and complete a linoleum and carpet challenge in their personalized Bed & Breakfast rooms. The handymen must install peep holes on the doors and add door knobs, which only serve to prove just how bad these handymen still are. As they put the finishing touches on their rooms, they soon move on to finishing the kitchen walls.

In this forth installment of the hit TV series "Canada's Worst Handyman", five of the country's most hapless home renovators are given the opportunity of renovating a one hundred year old country lodge somewhere deep in Ontario cottage country.. At the lodge, each handyman will attempt to renovate a bedroom equipped with an ensuite 3 piece bathroom into a children's retreat.