Taylor unearths new testimony from a witness to Slumach's execution; a deathbed letter written by a man who claims to have found Slumach's gold sends Adam and Kru on a dangerous glacial trek in search of the fabled mother lode.

The recent glacier expedition leaves Kru rattled and rethinking his approach; clues left by an Indigenous voice from the past send the entire team north into the wild terrain of the Upper Pitt in search of Slumach's gold.

Reports of a jar of gold send Adam and Kru on the trail of missing prospector Volcanic Brown and his last known location; Don and Taylor investigate a strange marking on the prospector tools found in the Upper Pitt.

Clues revealed in Katzie First Nation history lead the team north; Kru unearths 100-year-old court documents that shed light on Slumach himself.

Kru finds a tape-recorded interview of a man who claims to have found Slumach's motherlode, and out on the trail, Adam's old rival appears to be a step ahead in his search for the gold.

The search for Slumach's gold sends the team 300km away into the heart of mystery and murder. Back in Pitt Lake, an unlikely prospector arrives with a shocking claim.

The continuation shows the team uncover evidence of a Spaniard galleon sunk in Bute Inlet, disprove Jack Mould as a con man, and another prospector falls to the curse of Slumach.

A hidden 1940s map reveals new clues pointing to the motherlode. The team races season-ending weather through unexplored terrain to find an X that marks the spot where Slumach possibly found his gold.