In the second episode of “Boston Med,’’ a cardiothoracic surgeon at Children’s Hospital Boston makes this matter-of-fact assertion: “It’s a tough situation, but it’s not hopeless, and if anybody can fix it, we can.’’ He is describing a particular case: a baby born with a rare heart abnormality whose father, a US soldier, has returned from Iraq for the surgery. But his words also reflect the core assumption at the heart of “Boston Med,’’ an eight-part ABC News documentary series that premieres June 24.
