Avant même que le Docteur Allan Conner songe qu'il pourrait perdre son emploi en tant que chef du département de pathologie à l'hôpital de Bethune, une explosion survient au sous-sol faisant de nombreux blessés. Griffin et lui se précipitent alors sur les lieux pour apporter leur aide...

Mel et Jerry ne s'accordent pas sur la façon de soigner un pompier qui montre d'étranges symptômes suite à une opération...

Griffin is forced to account for his actions when a patient dies while under his supervision.

Allen performs an extraordinarily rare and dangerous medical procedure, and Zoe’s mother turns up at Beth-H unexpectedly.

Exhilarated by her new romance with Cutler, Mel is uncharacteristically reckless in the operating room.

Cutler is drawn into a critical case with a husband and wife who are at odds over the treatment of her unexplained illness.

Allen works to diagnose a reclusive young woman’s illness, while Griffin begins to come apart at the seams.

Mel explores the significance of a literal and figurative broken heart, while Griffin embarks on a drug-fueled odyssey.

A clumsy attempt at addressing Griffin’s drug problem pushes him further down the spiral.

Mel does everything in her power to save a gravely wounded Sandy, while Griffin finally confronts the reality of his addiction.