Remember to bring along your toothbrush and toothpaste, or you may fall prey to the Cavity Express! Join Egg, an aspiring dental practitioner, and his trusty sidekick C1 aboard the remarkable hybrid locomotive, the Cavity Express. Together, they navigate treacherous terrain and work tirelessly to achieve Egg's lifelong dream of becoming a proficient dentist. Despite facing formidable challenges along the way, Egg remains dedicated and determined, confronting the malevolent cavities and forging ahead towards their ultimate destination, the End of the Journey Station. Experience the captivating journey of Egg and C1 as they explore the extraordinary realm of the Cavity Express in this thrilling animated adventure.