Following on the success of "Regular Show", Cartoon Network show creator Owen Dennis introduces a new animated series highlighting the adventures of a preteen and her robot companion. Tulip Owens is a 13-year-old girl who aspires to become a computer game programmer but finds herself trapped on a train one day and is looking for a way out. She meets a robot called One-One, which consists of two spherical robots containing contrasting personalities that can combine into the shape of a basketball. Together they search the train, meeting a cast of strange characters along the way and hoping to find clues that will help Tulip find her way home.