Beckett conducts a covert investigation related to her mother's murder but things go terribly wrong when the subject under surveillance is killed. Castle and Beckett become the object of a manhunt when evidence connects Beckett to the victim.moreless
The doctors try to cope with the heartache and injuries caused by the plane crash; everyone at Seattle Grace struggles to return to normalcy amidst the chaos.
In one reality, Michael finds himself collaborating with Dr. Lee to help a man with schizophrenia who has taken a hospital hostage. The key to helping him is a ring in the other reality that disappears. Meanwhile, Michael starts hallucinating and sees a penguin everywhere, while Rex tells his father about his new girlfriend Emma.moreless
A barbaric family history is revealed when Nick and Hank investigate a case of breaking and entering. Meanwhile, Nick assigns Monroe to look after Aunt Marie.
Nick Burkhardt's life is completely transformed when his family's legacy is revealed to him and he discovers that he is a Grimm, a monster hunter who can see the creatures for what they really are.moreless