When NCIS: LA left off last season, Arkady was near death in Russia and the NCIS team were bugging out. Fast forward, G is trying to find out if Arkady is still alive, and distancing himself from the team to do it. They get all Mama Bear on him, and the episode is basically all about them treating him like a suspect.
In the end, it was really much ado about nothing…no real plot development, small scene of drama, etc, but nothing that really moves the plot along. Not a great episode, but at least Deaks mentioned something about the LAPD investigation into his behaviour, and an original cause perhaps. Other than that? Yawn.