With an earth-friendly alternative in place for the supermarket plastic bag problem, Nature Cat and his pals look to get back to their Earth Day hike celebration but are once again sidetracked. This time it's by a plastic bottle floating in a stream. Trying to get this one plastic bottle out of nature and into a recycling can takes them on a perilous, action-packed journey through the waterways, ending up in the ocean where they see more plastic waste! But it's also where they learn that Earth Day is every day.