Kate has just turned 11 and is about to have the adventure of a lifetime. While out playing one day she accidentally steps into a rainbow and is magically transported to another place on the planet. As she continues to ‘ride the rainbow’ attempting to get home, she meets other children and learns about their cultural beliefs about rainbows. By the time she gets home she has quite an amazing story to share but there are some who don’t believe her. Yet in the end, the proof arrives just in time and leaves even the adults in her life with dropped jaws and shocked expressions.