(previews start on Sept. 10; opens on Oct. 13) Jess has been scarred by her tours of duty in Afghanistan. Some of these scars are visible - the weals and puckers and grafts that mark her face and body - and some go deeper. In Lindsey Ferrentino's play, part of Roundabout Underground, Mamie Gummer's Jess attempts to heal, with a little help from virtual reality.