Beneath the seemingly ordinary surface of the small town of Arcadia lies a hidden world of magic and monsters, a secret that ordinary teenager Jim Lake Jr. stumbles upon when he discovers a mystical amulet. The ancient artifact chooses him as the next Trollhunter, a legendary human champion destined to protect both the human and troll worlds from the malevolent forces that threaten to destroy them. Voiced by Anton Yelchin, Jim must balance the perils of high school with his new, dangerous duty, guided by the wise and battle-worn troll Blinky, voiced by Kelsey Grammer, and his loyal friends. As he trains to wield the powerful Sword of Daylight, Jim uncovers a conspiracy that pits him against formidable foes and forces him to confront the true meaning of heroism. This animated adventure blends thrilling action with heartfelt humor and a coming-of-age story, creating a rich, immersive world where loyalty, courage, and friendship are the ultimate weapons in a war that has raged for centuries.