: The "release group" name, a well-known entity in the TV scene.
: Callen goes undercover by attending a DNA rally, where he stages a fight with Sam to gain the group's trust.
: The investigation begins when a Navy lieutenant and a civilian die of cyanide poisoning after drinking water from the same communal jug at a bikini bar. NCIS Los Angeles S04E20 HDTV x264-LOL[ettv]
: Callen’s cover is blown, and he is nearly killed by cyanide himself, only surviving by using a counteragent. The team eventually locates the group's base and prevents the mass poisoning. Technical File Details
: Indicates the file was distributed or indexed by the ETTV community. Cast & Credits G. Callen Chris O'Donnell Sam Hanna Kensi Blye Daniela Ruah Marty Deeks Eric Christian Olsen Hetty Lange Linda Hunt Director Eric Laneuville Writer NCIS: Los Angeles Season 4 Episode 20 Recap: Purity : The "release group" name, a well-known entity
In this episode, the OSP (Office of Special Projects) team investigates a potentially catastrophic chemical threat in Los Angeles.
The specific naming convention in your query provides information about the digital release of this episode: : Sourced from a high-definition television broadcast. : Callen’s cover is blown, and he is
: Encoded using the H.264/MPEG-4 AVC compression standard.