After Nix's demise Zee goes to hiding. Kenzi returns with a new friend. Lauren discovers her new fae powers.
After Pan tricks Henry into sacrificing his heart, Emma and the others must stop him from gaining absolute power. Meanwhile, in the past, Regina approaches Gold to get his help in adopting a child.moreless
Kiera and Carlos discover that a juror on Julian's trial has been compromised and must race to protect his family from a Liber8 plot. Alec is torn between telling the truth at his brother's trial or protecting his mother. Emily reveals she is more than just a pretty face.moreless
Grace is thrown into general holding, but Mitch continues his investigation. Meanwhile, Alex makes a move to take the leadership and attempts to mend some bridges with him.
Grace tries to comfort Jimmy when he believes that his son has been killed. She must then face Internal Affairs.
The hospital is flooded with victims from a bus crash when a winter storm hits Denver, and Emily is assigned to run triage in the E.R. In the middle of the chaos, Emily has to perform an emergency skull procedure on a heroic Marine who unexpectedly collapses. Tyra is frustrated by her father's lack of respect for her as a doctor, but they make a breakthrough in their relationship after they perform an emergency c-section together. Meanwhile, Will and Emily secretly work together to treat an unexpected patient, which causes Sandra to wonder if Will has feeling for Emily. Micah finally decided to make a bold move in his personal life.moreless
The Egyptian god Osiris wreaks a bloody trail of deaths as he tries and executes anyone guilty of past mistakes. Sam is forced to defend his brother when Osiris targets Dean for his guilt over all the things he's believed he's done in his life... and calls Jo as a witness.moreless
In the aftermath of the car crash, the surviving Winchesters go to the hospital, where one is stalked by a Reaper while another must consider sacrificing himself to save the others.
A flower that comes from a reopened "Level Three" of the fertilizer plant brings strange reactions from several people, including Jonathan, Lana, and Pete.
On a class trip, Clark and a fellow student named Eric are struck by lightning, and because Eric was holding a piece of kryptonite, Clark's powers are transferred into him.