While Special Agent Pride and the New Orleans team investigate a Russian sleeper agent who was involved with Abby’s brother, Luca, Sebastian flies to D.C. to partner with Abby on the forensics in the case. Also, Bishop drives through the night to deliver a package and work the case with the New Orleans team.

The crossover starts on NCIS S13E12 Sister City (I).

NCIS agents McGee and Torres travel to New Orleans to partner with Pride and his team in the search for a missing homeland security theoretical terror playbook.

The crossover starts on NCIS S14E15 Pandora's Box (I).

Pride and his team join forces with FBI Director Isler when a Russian operative, who is in the U.S. to provide intelligence on sleeper agents, disappears after his Navy escort is murdered. Meanwhile, Tammy partners with former sleeper agent Eva Azarova to locate the missing operative Eva has known since childhood.