In the garden, Plummy finds a deserted bird's nest with eggs and wonders where the parents are. Plif and Plops also see the eggs and naturally want to eat them. Plummy hinders them, but they think up a scheme again. In a spectacular manner, Plif and Plops change into cuckoo eggs and then into cuckoo chicks. Plummy runs his feet off trying the fill the chicks up with food, but he knows what he will do later on in order to take his revenge!
