When you’re three inches tall, a cluttered attic can offer a world of mystery and wonder! Zip and his friend Wheel explore the shadowy corners of a long forgotten Nursery, playing with the wooden blocks, wind-up toys, tin soldiers and jack-in-the-box. But a family of mice view their noisy presence as an invasion and launch a counter attack. Zip and Wheel retreat to a dusty music room, where more creatures and an unexpected symphony emerge from the woodwork!