The plot of the animated series "Infinity Train" revolves around a 13-year-old girl named Tulip. She finds herself on a strange train that has no end or beginning, and each car holds numerous secrets. In order to find her way home, Tulip must unravel all the mysteries of this peculiar train. This mystical adventure brings her friendship with a robot housing two personalities, and a dog who is the king of the country of Corginia.