When Poppy is invited to a beach party by cousin Daisy in Camomile Cove, she has to help clean up the beach first. There is so much plastic refuse. Meanwhile, her puppy Sidney chokes on a discarded bag. Poppy joins the campaign to rid the planet of one use plastic waste and comes up with an enterprising idea. Poppy is her usual energetic and passionate self as she realises everyone can do a little bit to make a big difference.