Team members share their disappointment that sonar data didn't match what was at the bottom of 10X.
A diver finally reaches the bottom of the 10X shaft in this collection of scenes from "Secrets and Revelations."
The cyclone drilling method dredges up interesting clues about the existence of the Money Pit in this collection of scenes from "Voices From Below."
02:00 — Learn about the history of the 13-foot-wide causeway connecting Oak Island to the mainland.
Rick and Marty share their thoughts about the fear and excitement surrounding their deepest dive yet into 10X.
01:53 — A diver runs a test to see if he can fit inside the 10X pipe with his proper gear in this scene from "Columbus Day."
Journey bassist Ross Valory stops by for a personalized peek at Oak Island's sites.
Rick and Marty put another theory to the test by drilling core samples with a coring rig in this collection of scenes from "Sword Play."
Rick talks to Fred Nolan about his time on Oak Island as a hired surveyer.
Rick and Marty's latest effort to get to the bottom of 10X fails in this collection of scenes from "Silence in the Dark."
X marks the spot where the team believes a treasure vault could be buried approximately 145 feet below in this bonus scene from "Columbus Day."
Charles, Jack, and researcher Terry Deveau investigate large boulders along the island's shoreline in this bonus scene from "The Missing Peace."
Dave describes how he defied all expectations after nearly dying.
The team organizes a dive to investigate the triangular stone detected with their radar in this collection of scenes from "Columbus Day."
Dave Blankenship joins Rick and Marty to answer viewer-submitted questions about psychic readings and the future of the investigation.
Rick uses the digger to search for proof that Oak Island's triangle swamp is man-made in this collection of scenes from "Phantoms of the Deep."
Using sonar, the team discovers a triangular stone under water that might point to treasure in this scene from "Phantoms of the Deep."
The team gains a new ally and a new spot to drill in this collection of scenes from "The Missing Peace."
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- Premiered: January 5, 2014
- Rating: TV-PG
- Premise: Two brothers search for legendary treasure on an island off the coast of Nova Scotia. (more)