 A couple finds the corps of U.S. sailor Khalil Said, who arrived after translation work on Guantanamo Bay, suffocated in smuggled emeralds. The NCSI team gets a priority flight to investigate on Cuba Special Agent Paula Cassidy, an interrogator-translator to whom Said wrote five letters. Abby gets to buy loads of perfume to identify a  female smell  on Said s underwear. Leroy Jethro Gibbs starts interrogating Nasser Al Jazair, Said and Cassidy s subject, believing him the source of emeralds to finance terrorism. Tony DiNozzo and Kate Todd initially bickered while treating the job as a paid vacation, but find out Said and Cassidy probably were romantically involved, which she denies. Abby finds  Easter eggs  (hidden computer info) in Said s laptop porn files, indicating he knew Bin Laden s son in law. Nasser is to be set up...