Castle and Beckett pursue a ruthless killer who, they discover, is part of a sinister, international conspiracy. Castle and Beckett are joined on the case by Sophia Conrad, a smart,…

Castle & Beckett race to find the “Linchpin” in order to stop the first domino in a chain of events which will plunge the United States into war. Their efforts…

Dr. Romano seizes control of the ER and manages to offend everyone. Dr. Kovac asks Dr. Corday’s help in the quest to bring a sickly Croatian boy to the U.S….

Abby has a dialysis patient in critical condition, but she cannot find his physician, who does not want to be bothered during the holidays.

Bartlet continues to struggle over the wisdom of assassinating the terrorist Qumari defense minister; after Ritchie declines to meet Bartlet, Sam and Toby play a dirty trick; as the search…

A powerful sorceress switches bodies with Phoebe, who ends up trapped in the Underworld. Meanwhile, Paige faces a big problem when her new charge refuses her help.