Family made up of mother Blythe Hart, father Don Hart, son Ryan Hart. Blythe is the wife of Captain Don Hart from Fire Station 113, mother to lieutenant Ryan Hart. Her family is very accomplished and is very resourceful in the ways of the whiskey distilleries, philanthropy and in horse racing. Don is the Captain of 113, and works along his son Ryan. Ryan is a lieutenant of 113 and is married to ER doctor Samantha Hart. Blue is Don’s younger son born when he had a fling with Dixie Bennings.