Some of the birds of the woodland are revealed: the wren, the woodpecker, the nuthatch, the blackbird. A nightingale is photographed in song. The distinctive horned caterpillar of the purple emperor butterfly eats leaves of the sallow tree. The engorged caterpillar enters into its chrysalis phase. The other insect life of the woodland is on display: bees and butterflies seeking nectar from the flowers.

A stoat prowls the forest floor looking for prey; it comes to a fallen log sheltering rats. The stoat pursues the rats into a hole and returns clutching one it has killed. The stoat drags the rat's body back to its lair.

The nocturnal animal life of the woodland: a dormouse feeding, a fox hunting, a wood mouse storing food in tree roots. A hedgehog out hunting discovers a slug; it peels slime off its body before eating it.

The woodland in autumn with leaves turning red and brown. Birds seek out the remaining food and find elderberries. The last flowers are visited by a red admiral butterfly and a bumblebee.

Elements of decay are cycled in the woodland system ensuring nothing is wasted. The wing of a purple emperor butterfly is taken away by wood ants. A vole takes up accommodation in an old birds' nest.

In the woodland are the acorns that will become the trees of the future. On the woodland floor the fallen leaves are accumulating to provide a store of fertility. Mushrooms and fungi take advantage of decaying matter. A dormouse prepares for hibernation.

The cyclical interdependent system of the woodland is presented as an example to be followed by humans in the environment.