US Marine Corps Sergeant Samuel Dillon was on patrol in Afghanistan four years ago when he was hit by sniper fire. After undergoing three surgeries, Dillon earned an early discharge and returned home to Boston, where he is pursuing a sociology degree at Suffolk University.

Dillon, 26, is one of 140 military veterans enrolled at Suffolk and is among a select few whose stories form the basis of an unusual theatrical production being staged this weekend at Suffolk’s Modern Theatre. Titled “At Ease,” the play portrays the lives of seven military veterans who, like Dillon, served their country during wartime before returning to civilian life as Suffolk students. In Dillon’s case, he did tours of duty in Iraq and Afghanistan.