When the Primagen's Lightship was destroyed in Turok 2: Seeds of Evil the resulting explosion created a shockwave throughout the universe. This effect nearly ended the life of Oblivion, a 'thing' that drifts through space, consuming anything that ends up in its way. Also during this explosion, a new world was created. In this world lies the Turok family tree, and Oblivion knows that the only way the pain the lies within can be stopped is to destroy the Turok line.
The third title in the Turok series allows you to choose who will become the successor of the Turok lineage, either Danielle Fireseed or her brother Joseph. Each has unique paths through the same levels, as Joseph's small size allows him to fit into air ducts to take the low road, while Danielle's magnetic grappling hook allows her to take the high road. Each also has unique upgrades to basic weapons. While Danielle's shotgun upgrade coats the shrapnel in napalm to immolate anything they touch, Joseph's instead charges them with electricity, causing them to ricochet off of walls and floors. The story is told through in-game cutscenes with highly detailed models. There are no keys to collect this time around, as each level leads linearly into the next.