Episode 1 : Endgame
Following Callen's public shooting of the Chameleon on last season's finale cliffhanger, all is not well with the NCIS: LA team, as Callen is placed on suspension and Hetty adjusts to retired life.
Episode 24 : Descent
An explosion in the desert rekindles the search for stolen nuclear weapons and prompts Hetty to shuffle the NCIS: LA partnerships, sending Callen and Kensi overseas and Sam and Deeks teamed up stateside. Aunjanue Ellis guest stars as Michelle Hanna, Christopher Lambert guest stars as Marcel Janvier and Timothy V. Murphy guest stars as Isaak Sidorov.