"The Seeker: The Dark is Rising" follows the journey of a young boy named Will Stanton, who discovers that he is one of the last of the Old Ones, a group of ancient beings tasked with protecting the world from the forces of darkness. As Will approaches his 14th birthday, he learns that he must harness his newfound powers to combat the rising threat of the Dark, which seeks to plunge the world into chaos.

Guided by his mentor, Merriman Lyon, Will embarks on a quest to locate the Signs of Light, powerful artifacts that can help him in the battle against the Dark. Along the way, he faces various challenges and encounters sinister creatures that test his courage and resolve. As the clock ticks down to a fateful confrontation, Will must embrace his destiny and unite with his allies to prevent the Dark from claiming victory. The film weaves themes of friendship, bravery, and the eternal struggle between good and evil, culminating in an epic showdown that will determine the fate of humanity.