Steve and Catherine journey to Afghanistan to help a young boy whose family is responsible for saving Catherine's life many years ago.
Kensi and Granger reunite with the rest of the Los Angeles NCIS team when the murder of a federal agent in Los Angeles might be tied to a possible terrorist attack.
In the first part of the two-part series premiere, the police raid the Shannon home and arrest the father, Jim Shannon. Shannon realizes he must take drastic measures to keep his family together after his wife, Elisabeth, is selected to travel back to prehistoric times to create a new civilization and, hopefully, help change the future.moreless
In the second part of the two-part series premiere, the Shannons are trying to get used to their new lives in Terra Nova. Josh and some friends run into trouble when they sneak out of the compound. Jim, Elisabeth and Taylor go out looking for them.moreless