NCIS: New Orleans S03 E13 Return of the King

"New Orleans is a city of secrets. This team uncovers them."

After thousands of classified government files are stolen, the NCIS team searches for an underground group of hackers co-founded by Pride’s old contact, Elvis Bertrand, who are known for exposing corruption among prominent people in New Orleans. Sebastian joins the team as a newly-minted NCIS Special Agent.