Rival gangs bring their war to Med. Will and Charles work with a teenage brain cancer patient who's refusing treatment. Tensions run high in the OR when a patient's transplanted uterus fails, forcing Crockett and Blake to decide whether to try another transplant using a uterus from the patient's sister.
When two women are found dead dressed as fairytale characters, Castle and Beckett must race to find the killer before he strikes again!
When a neurosurgeon is assassinated just before performing surgery, Five-0 uncovers the shocking truth behind the disappearance of four reform school boys 40 years ago. Also, McGarrett's Mercury Marquis is stolen by an unlikely culprit. Daniel Baldwin returns as Paul Delano.
Don receives a reward for his work. Joan butts heads with her co-worker on an account. Faced with a big decision, Roger dodges.
When a gunman causes a deadly plane crash in Philadelphia, Megan and her team go into disaster mode; while Megan conducts autopsies during frequent blackouts, one body goes missing.