Overview: Steve Thomas can be found opening the show from Boston Harbor again, this time aboard the STS Sagres, the stunning Portuguese entry in the Tall Ships Parade. Meanwhile, viewers check out the towering scaffolding around the Charlestown townhouse. When Steve arrives at the job site, Dan takes him on a tour of the gutted kitchen and baths that reveal the full interior space available for construction. What exactly Dan and Heather will be able to build in this space remains undecided, as Steve finds out when he visits Boston's Inspectional Services Department with architect Jack French. While some parts of the promised building plan are approved, others are flagged for a for a zoning review. In the basement, we find Tom shooting lines to create a level new floor before prepping the area for the pouring of concrete. Heating and plumbing expert Richard Trethewey is able to shed light on the pipes, explaining how PVC pipes can line pre-existing clay pipes, eliminating the need to cut through