Abigail misses her father, who is a soldier deployed far, far away from their ranch in Texas. For her fourth birthday, her grandmothers create a green dinosaur costume that snaps to her rumpus. Although Abigail's own ears don't hear as well as other children's, she quickly discovers that only she can hear the dinosaur's magical voice. Snapped together, the two begin a year-long exploration of the ranch where their adventures include bottle feeding a baby calf, learning the proper way to call elk, and finding a suitable tail for a tailless monkey. Singing "Jesus Loves Me This I Know," gives the two friends courage while meeting a room full of wild animals. Explaining to Rumpus that God is always with us, even though He is invisible, helps Abigail remain brave until her father's safe return from Iraq.