SOUTHLAND (2009-13)
A no holds barred look at beat cops keeping L.A. County safe, Southland was cancelled after its first 2009 season on NBC before getting picked up by TNT for four additional seasons always on the verge of cancellation. This only emboldened the creators to push the envelope further every time, culminating in a season 5 cliffhanger where main LEO characters see bad unresolved endings: Ben abuses his power to resolve family issues and gets labelled a dirty cop, while unhinged John assaults a neighbor and is shot by the police, leaving him to bleed out (???) as the show fades to black.