One of Esposito's old cases is reexamined by Castle and Beckett because of a clue left at a crime scene involving an armored-car driver's murder.
As a Swedish team threatens to beat Leonard and Sheldon to proving their own theory, they consider breaking some rules in order to be able to make their experiment. Meanwhile, Penny and Bernadette set a dating app on Amy's phone.moreless
As Savi's attempts to repair things with Harry don't go to plan, Richard and April's relationship starts to heat up. Meanwhile, Karen's office is broken into and Joss's life is made more difficult by Olivier.moreless
The gang celbrates Christmas together for the first time. As they gather at Jeff's place, Annie decides to invite Prof Cornwallis to dinner in an effort to boost their grades on their last test.moreless
Two doctors try to get a patient have the brain tumor fixed with surgery one more time. Dr. Ridgway needs help dealing with the loss of a patient. A doctor tries to get a resident in trouble declaring a possible organ donor dead. A doctor needs help giving a diagnosis to a patient.moreless
The lives of the triplets are endangered because of a fight between Cooper and Charlotte. Violet is there to comfort a friend when it comes time to take a loved one off life support.moreless