Secrets are revealed and confrontations abound as the truth behind the deadly game finally begins to come into focus.

While Yanzheng analyzes each person's testimony, clues -- and a theory -- gradually begin to emerge. 

An another body emerges, everyone begins to point fingers at one another. Later, the official investigation begins.

The remaining vacationers wake to discover their circumstances have dramatically changed. Later, the group makes a discovery.

As yet another victim falls, Awei reveals a shocking bit of news that may shed light on the incident from a decade ago.

With no way to escape or communicate with the outside world, the group is forced to fend for itself and deal with an explosive secret.

As the hiking club reunion gets underway, a text message from the mysteriously absent host Xinyi breaks the awkward atmosphere.