Newly based in Brighton, Trevor and Joe take on a schoolhouse conversion as well as rival builder, Nick Costello, who feels undercut by the brothers and is out for revenge. Trevor has ill-advisedly fallen in love with Nick's little sister, and Joe has started an affair with their site architect.

The kickoff project for "Purvis and Purvis Master Builders" is the renovation of a rundown townhouse - a job that quickly spirals out of control. In order to finish the job, the brothers must first repair their own 'odd couple' relationship...and still come in under budget.