Two friends find themselves locked in an epic battle to the death.

Two friends find themselves locked in an epic battle to the death.

Two friends find themselves locked in an epic battle to the death.

Two friends find themselves locked in an epic battle to the death.

Two friends find themselves locked in an epic battle to the death.

After her grandparents are killed by invisible creatures, a determined young woman seeks to avenge them with the help of her canine companion - the only one who can see the mysterious invaders.