Griffin starts to spin out of control after a harrowing car accident evokes a traumatic event from his past and Bruno gives Mel some vital tips on purse string suturing.

Sandy struggles to say goodbye to Brian as her reconfigured family rally around to support her. Zoe and Griffin organize a labour stoppage after Lonnie is fired.

When an injured firefighter develops curious and frightening post-op symptoms, Mel and Jerry clash over how to proceed.

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

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.