Need to build a subspace accelerator while under attack by a deadly local predator? Need to rescue a starship from interphase without getting trapped there yourself? Call in the Starfleet Corps of Engineers team, specifically the crack team from the U.S.S. da Vinci. Under the guidance of Captain David Gold and his first officer, former Starship Enterprise engineer Commander Sonya Gomez, the crew of the da Vinci can construct six impossible things before breakfast.