Maritime Gloucester, with Adventure, Isabella and Ardelleas a backdrop, provided an exceptional setting for Friday night’s performance under clear skies of Gloucester Story. Set in 1905, this 1954 fictionalized play features the interactions among fishing families, a schooner and its crew, business associates, and life at sea. The musical, which runs through Sunday, is presented as part of Gloucester’s 400th anniversary by the Annisquam Village Players.