Their Marks: [s10e1] On

The primary objective established in the season premiere was to chase the high-trace readings of "aqueous gold" discovered in the Money Pit area during the previous year. To do this, the team unveiled an ambitious plan:

"On Their Marks" effectively transitioned the search from speculative digging to high-precision science. By combining historical wood analysis with advanced hydrogeology, the fellowship proved they are closer than ever to identifying exactly where—and possibly who —deposited the fabled treasure.

The episode also revisited the "Templar Connection," featuring researcher Corjan Mol and author Gretchen Cornwall. Cornwall presented evidence from in England, suggesting that religious and political carvings there could be linked to the individuals who engineered the mysteries of Oak Island. In response, Marty accepted an invitation to travel to England with his son Alex to investigate these potential medieval ties further. Why This Episode Matters [S10E1] On Their Marks

: Geoscientist Dr. Ian Spooner and hydrogeologist Dr. Fred Michael introduced the use of Leveloggers to determine the exact direction of water movement beneath the surface.

: Core samples retrieved wood fragments with what appeared to be adze marks —a manual woodworking technique suggesting the timbers were pre-industrial and man-made. The primary objective established in the season premiere

: These marks are potentially linked to an adze head found on Lot 4 the year prior, which blacksmith expert Carmen Legge dated to approximately 1620.

The standout moment of "On Their Marks" occurred during the drilling of Borehole M16.25. While monitoring the operation, the team encountered a significant 8-inch "void" between 103 and 107 feet deep. Why This Episode Matters : Geoscientist Dr

: Water testing near the Garden Shaft revealed some of the most promising traces of gold yet, centering the team's attention on this specific zone. Major Discovery: The 103-Foot Tunnel