LD50 is the fourteenth episode of NCIS: Los Angeles.
The body of a career criminal posing as a Marine is discovered, prompting OSP to investigate. They soon discover that a biochemical weapons expert suffering from Alzheimer's disease was tricked into producing a deadly toxin for an arms dealer. The team soon realize that there will be an auction at which the weapon will be sold and race against the clock to stop international terrorists from buying the weapon which could be used to launch a bio-terror attack against Los Angeles.
Episode Name OriginEdit
The name "LD50" refers to the deadly substance around which the episode revolves.
|Chris O'Donnell||G. Callen||Special Agent|
|LL Cool J||Sam Hanna||Special Agent|
|Linda Hunt||Henrietta Lange||Operations Manager|
|Peter Cambor||Nate Getz||Operational Psychologist|
|Daniela Ruah||Kensi Blye||Special Agent|
|Adam Jamal Craig||Dominic Vail||Special Agent|
|Current Status: Missing in Action|
|Barrett Foa||Eric Beale||Tech Operator|
|JR Bourne||Dallas||Head of the local crime syndicate who previously appeared in 'Breach'|
|Esther Balmore||Julianna McCarthy||Former expert on the development of toxins, now suffering from Alzheimer's|
|Gage Jenson||Dameon Clarke|
|Simon Amputuan||Played by Burt Bulos||Filipino arms dealer detained by NCIS|
|Jacobus Troyger||Played by Andrew Connolly||Arms dealer responsible for the auction at which the Clostridium botulinum was sold|
|Blond Man||Played by Bru Muller|
|Sadiki Hassan||Played by Vachik Mangassarian||Egyptian arms dealer present at the auction|
Real World ConnectionsEdit
Lethal Dose, 50% or LD 50, is one the measures used to indicate the dose of radiation or of a toxic substance required to kill half the members of a tested population. Other measures used to indicate the dosage include LC50 (Lethal Concentration, 50%) or LCt50 (Lethal Concentration & Time).
|NCIS: LA Season One|
| ● Legend (Part 1) (NCIS) ● Legend (Part 2) (NCIS) ● Identity ● The Only Easy Day ● Predator ● Search and Destroy ● Killshot ● Keepin' It Real ● Pushback ● Ambush ● Random On Purpose ● Brimstone ● Breach ● Past Lives ● Missing ● LD50 ● The Bank Job ● Chinatown ● Full Throttle ● Blood Brothers ● Hand-to-Hand ● Fame ● Found ● Hunted ● Burned ● Callen, G.
[ Season Two ]