For the first time in a decade, the designers, carpenters and host Paige Davis reunite; designers Doug Wilson and Hildi Santo Tomás and carpenters Ty Pennington and Carter Oosterhouse redo rooms for two sisters who live next door to each other.

A new mother is desperate for relaxation and a new mom cave, while her neighbors need a multi-purpose room for kids and parents alike; one designer's bright color choice makes a loud impact, in more ways than one.

The team finds out if mom and dad really know best as a son and his parents redesign each other's massive master bedrooms; one designer experiences some pushback with a proposed change that may jeopardize these family ties.

A few special guests bring many design surprises to this heartfelt and humorous episode of Trading Spaces. A couple of DIY design enthusiasts trade spaces with their neighbors and friends, a family whose toddler has overcome cancer.

Designer Laurie Smith joins the team newcomer Sabrina Soto in the suburbs of Baltimore, Maryland, as two sets of young parents redo a room in each other's home. However, one designer's ambitious plans may cause some super-sized concerns.

The team heads to Atlanta, where designers Genevieve Gorder and John Gidding redo a big basement and a small spare room. John's debut proves that smaller isn't always easier, as he struggles to maximize design within a tiny space.

The crew tackles two living rooms and one fan as they trade spaces in the suburbs of Atlanta, Georgia.