Couple Adam and Renee are desperate to change their front room, bar space and master bedroom.
Jess and JP agree to swap houses with Narelle and Stephen, Jess's parents; Naomi Findlay suggests the parents go against their daughter's expectations.
Allison and Mick dream of a spacious French-style kitchen for hosting guests; Souhyla and Dan with to give a new personality to their soulless master bedroom.
The couples have one day to finish the final two rooms; the pressure is on to give their neighbors the makeover of their dreams.
The designers try to push the limits to transform twin townhouses, and the neighbours have to put their faith in them.