Rubby Chux's chook friends discover that Rubby is quite a good incubator. So the hens have a rest while Rubby Chux takes on the difficult job of hatching eggs and raising chicks. Thinking that all birds can fly Rubby teaches the chicks how to fly, look for food and be independent. Rubby never, ever gives up and once his task is complete, its time's for Rubby to take a rest.