Ettie Ruiz is the History and Science Officer for her spaceship, but she never imagined she'd get stranded in 19th century China with famous adventurer Isabella Bird. Now she's sailing down the Yangtze River, visiting the fabled city of Shanghai, and trying to save the planet from a rogue comet. With the help of her friends and the girl she'd like to kiss, Ettie's on a mission to rescue the past before the future itself ceases to exist.