Two brothers and their dad are out on a hunting trip and come upon a farm where they see something they shouldn't which results in their being transformed into animals. Male to Cow, Male to Female Dog, Male to Male Dog and Bull.

Shy and sensitive little brother biomerges with Renamon to save older brother. As Digimon and Tamer they will share a new destiny that affect their relationships with their family, friends, and each other. They must learn to accept their new roles as they fight for their lives.