Mr. Mouse eats some grass and goes for a walk, where he encounters Mr. Snake. Mr. Snake informs Mr. Mouse that as a mouse he is at the bottom of the food chain, and eats him. Mr. Snake then meets Mr. Hawk, who also informs Mr. Snake that as a snake he is at the bottom of the food chain, and eats him. Mr. Hawk then meets Mr. Cougar, who says the same thing to Mr. Hawk and eats him, completing the cycle of the food chain.