Samantha Pynn and Kate Campbell renovate the kids' bedroom; Rob Evans and Sabrina Smelko tackle the guest bedroom; Dew and Jonathan Scott take on some bathroom renovations.

Jo Alcorn and Mike Holmes Jr. work on a home theater; Mia Parres and Brian McCourt create a dramatic guest suite; Mike Holmes checks in with his son; Kortney and Dave Wilson make a surprise visit.

DIY authorities Tiffany Pratt and Sebastian Clovis lean on childhood memories to inspire the perfect playroom, and outdoor enthusiast Carson Arthur partners with designer Sarah Keenleyside to create a home office with green appeal.