Rich Ting

Burgess and Roman become trapped; taser certification.

Ah Sahm pays a steep price for playing the hero.

Ah Sahm faces a dilemma when Bolo is sent by Father Jun to hunt down Long Zii and Mai Ling.

Callen and Sam join forces with Anna Kolcheck and the ATF when Arkady Kolcheck warns NCIS that a notorious international weapons dealer has returned to the states. Also, the case requires Eric to go undercover as a bank IT technician.

Sam goes under cover as a day trader after an investment banker who has ties to Russia is murdered; one of Callen's aliases is the victim of credit card theft.

When Cadmus attacks National City with a kryptonite-powered villain who ends up seriously hurting Supergirl, Superman blames Hank because the kryptonite was stolen from the DEO. Meanwhile, Kara's first day at her new job doesn't go as she planned after she meets her new boss, Snapper Carr (recurring guest star Ian Gomez).