Scottish Highlander immortal seeking the mythical Source in a crumbling world.
The Elder provides Duncan with essential knowledge about the journey's danger.
Duncan meets the Elder at the monastery and hears that proximity to the Source will weaken immortals.
Joe acts as Duncan's trusted human ally and recruiter.
Joe is asked to find Duncan and recruits him for the Source quest, later sacrificing himself while helping Duncan escape the Guardian.
Methos guides Duncan through the quest and eventually identifies him as the worthy candidate.
Duncan joins Methos and the group after Joe recruits him, and he later travels with Methos toward the Source.
Their escalating conflict drives the film toward the final confrontation.
The Guardian attacks Duncan in the wastelands and later challenges him near the Source in a final battle.
Their former marriage remains emotionally important as Anna becomes linked to the Source.
The plot states that Duncan separated from Anna, his mortal wife, after she decided she could not remain with him because of his infertility.
Explore the full interactive character relationship map of Highlander: The Source
Related entry on Wikidata (Q2522513), public domain (CC0).