Artilleryman and his mommy share a special bond. She supports his daydreaming and imaginative quests, while his frequently-on-the-road papa, Amos, with whom Gunner shares a stretched relationship, has various other ideas about where his son's passions should lie. Artilleryman and his dad effort to smooth over their differences for the family members, but when his mommy's health issues worsens, Artilleryman disappears right into heaps of publications on both scientific research and the mythological looking for feasible remedies. When Artilleryman and his rebellious good friend Jo go missing during their mission into the Water Male's mystical forest, Amos has to submerse himself in his son's world to find them and place his household back with each other.