Catherine and Joshua have different ideas about how the past unfolded after their father made the decision to leave them. Hunter Black is ready to reconnect, though Catherine is reluctant to allow him back into her life. Meanwhile, a decorated soldier is struggling with a war wound that has left him miserable. Another patient is admitted to the Cube with macular degeneration after she falls off the side of a mountain. To her surprise, she begins to see vibrant visions of snow leopards and landscapes that she could have never imagined. Elsewhere, Will discovers that he can't get rid of Delilah without risk of losing his restaurant.
Catherine Black is a world-famous neurologist at the state-of-the-art medical institution known as "The Cube". Catherine is brilliant, beautiful, and at the top of her game, though she's hiding a secret of her own: she's bipolar.
Each week, the doctors on staff attempt to unravel the mysteries of the brain and are constantly challenged by cases never-before-seen on television. The medical stories are moving, bizarre and a visual feast. The personal stories are riveting. The patients have rare, highly visual, often hallucinogenic and startling conditions, which we'll see through their eyes as Catherine diagnoses and treats them.