"Rabbit was the first on to hear it. Duck was the first one to see it. Cat was the first one to feel it. "It" turns out to be a football, and after watching the Giants and the Jets play this new game, Turtle, Duck, Rabbit, Frog, Owl, Dog, Cat, and the three birds form their own teams.
They meet with all sorts of unexpected difficulties (at one point the ball completely disappears) but the game goes on to an exciting finish.