Professor Cannafraz (a Richard Haydn impression) creates a "super carrot" and uses it on his test subject – Rabbitus idioticus americanus (Bugs Bunny), who immediately wolfs down the proffered carrot. Armed with temporary superhero abilities that need to be replenished with additional super carrots, Bugs remembers a newspaper article about Texas hunter "Cottontail" Smith, who wants to hunt down all rabbits.