The Deep (2015) (2015)
S1E8 The Test
Episode Overview
Title: The Challenge Plot: In their quest for a fragment of the enigmatic Ephemychron, the Nektons face a series of daunting challenges, including treacherous whirlpools, complete darkness, and enormous mechanical jellyfish. Is Nereus orchestrating these trials, or is there another force manipulating events from the shadows?
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S1