Saving Hope: Season 2 Episode 17 (S02E17)

When Charlie Harris ends up in a coma, he leaves the Hope-Zion Hospital in chaos - and his fiancée and fellow surgeon, Alex Reid, in a state of shock. As the staff of Hope-Zion races to save lives, comatose Dr. Harris wanders the halls of Hope-Zee in "spirit" form, not sure if he's a ghost or a figment of his own imagination.