In an alternate world teeming with formidable creatures, Lieutenant Artemis and her loyal soldiers are transported through a portal during a mission to find missing comrades. This new dimension is a savage wilderness, governed by the laws of nature in its most primal form, where humans are not at the apex of the food chain. The team quickly discovers that conventional weaponry is nearly ineffective against the massive, relentless monsters they face.

Struggling to survive in this hostile environment, Artemis encounters the Hunter, a skilled and enigmatic warrior whose life is dedicated to tracking and slaying these creatures. The Hunter, though wary at first, recognizes a shared goal in Artemis—to prevent the monsters from making their way through the portal and threatening Earth. Despite language barriers and cultural differences, the two must learn to trust each other and work together if they have any hope of defeating the beasts and finding a way back home.