A shocking online video brings together a widespread internet group of animal lovers out for justice. Their target, meanwhile, has more horrors planned.
A twisted criminal's gruesome videos drive a group of amateur online sleuths to launch a risky manhunt that pulls them into a dark underworld.
The peaks and the valleys. Find the essential episodes — and the ones to skip.
A shocking online video brings together a widespread internet group of animal lovers out for justice. Their target, meanwhile, has more horrors planned.
A new video pushes panic to the next level, galvanizing the "internet nerds" to intensify their own painstaking investigation as police join the hunt.
With the killer's identity -- and twisted motives -- revealed, the group finds more key clues as the global police manhunt reaches a fever pitch.
Each point is an episode, plotted in order. Colored bands mark season boundaries. Look for the rise, the plateau, or the decline.
High votes + high rating = beloved classic. High votes + low rating = notorious stinker. Low votes + high rating = hidden gem.
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