About the crew of a state-of-the-art research vessel on a quest to find a missing TV explorer in the Amazon.
Cast: Lili Bordán, Paul Edney, Mike Gassaway, Don McManus, Ryan O'Quinn, Walter Perez, Courtney Thorne-Smith, Jack Wagner, Laura Leighton, Marcia Cross, Daphne Zuniga, Rob Estes, Kelly Rutherford, Juliet Stevenson, Burn Gorman, Ken Bones, John Bowe, Vanessa Kirby, Jamie Parker
With a course now plotted for their final destination, the Magus crew suddenly finds itself in complete chaos when a member of their own is shot dead, leading Jahel to call upon the spirit of the Boíuna to help, against the wishes of her Father. The crew's quest is threatened further by the unknown killer, as the situation continues to spiral out of control, on the season finale of "The River".
The Magus crew find themselves in a stark predicament as they're stalked by a cannibalistic terror while searching through an abandoned research facility following mysterious clues that suggest Dr. Emmet Cole may still be alive. Meanwhile, security force leader Kurt is forced to make a heavy personal sacrifice when it comes to the safety of the crew.
The Magus crew continue their trek to the Sahte Falls where they discover Emmet's camera bag. Upon further examination of the tapes within it, they find some powerful footage of Emmet that shows him spiraling out of control, and it leads the crew further into the Amazon. Meanwhile, Lena reveals a secret she's been carrying to a fellow crew member.
A mystery ship runs the Magus aground, immobilizing it. The next day, another ship, the Exodus, responds to their Mayday and the crew offers its support... but they're not what they seem.
As the search continues for Emmet and his crew, the Magus comes across one of Emmet's crew members who went missing alongside Emmet...
When the whole crew of the Magus goes blind due to spores from a tree, lone holdout AJ will have to overcome his most paralyzing fear to find a cure before the blindness becomes permanent...
When the spirit of Dr. Emmet Cole mysteriously enters Jahel, the message is clear, go home! Instead, Tess determines to go into the jungle to find clues to Cole's whereabouts. While on their mission, they discover a tree draped in children's dolls that they suspect is there to ward off the "spirit of the abandoned girl" who drowned in the river. Then, when a member of the crew goes missing, the group realize they'll have to endure a nightmare in order to appease an angry spirit and get their loved one back.
Dr. Emmet Cole, beloved adventurer and television personality goes missing deep in the Amazon. After a fruitless search for him, his family and friends abandon hope and hold a memorial service to commemorate his amazing life. His grieving wife, Tess, reluctantly tries to face the reality that her husband is gone, while her son, Lincoln, is more than ready to bury his past. Six months later Emmet's location beacon mysteriously begins to relay a signal. Tess persuades Lincoln to join her and Emmet's film crew on a journey through the Amazon to find him, a journey on which horrifying and almost mythical events will push them to their limits.