The series, which began on AMC in 2011, stars Mireille Enos and Joel Kinnaman as Seattle homicide detectives whose lives play second fiddle to their all-consuming murder investigations that span entire seasons.
"The Killing" was canceled after its second season, but Fox Television Studios sought out a deal with Netflix, prompting AMC to share costs and agree to air a third season.
After the third season, AMC once again canceled the series. But Netflix picked it up for a fourth and final season of six episodes.
The third season ended on a cliffhanger, so the final six episodes will presumably focus on wrapping up the turbulant events in the main detectives' lives after their most recent case.