Plum is a friendly purple alien from the planet Blorb. She wants to know about life on Earth, but she can’t leave her spaceship! So she asks her group of human friends to explore Earth for her. She reports back what they find to her fellow Blorbians.
Plum's friends travel to a city. Cities are full of buildings, streets, and cars. But cities also have things you find in nature, like grass, birds, clouds, and rivers.