1. Lost at Sea
When a helicopter crew is adrift at sea and later discovered on shore, the NCIS team must determine the cause of the crash and locate the missing pilot, on NCIS. Pictured: Pauley Perrette (left), and Diane Neal (right) returns to guest star as CGIS Agent Abigail Borin. Photo: Cliff Lipson/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.