A young boy plays in the hospital room of his mother who is about to have a baby. After the father dejectedly leaves, the room suddenly breaks apart and an ogre kidnaps the boy's mom. The boy suddenly finds himself in a fantastical and chaotic world where he does battle with a giant red ogre, gets saved by a dog (the titular Wanwa), drives a rocket car, and runs up a tree.
In the hospital room of his mother who is about to give birth, a young boy plays. After the father leaves dejectedly, the room splits apart, and an ogre abducts his mom. The boy then finds himself in a fantastical world where he battles a giant red ogre, is saved by a dog (the main character Wanwa), drives a rocket car, and climbs a tree.