Emily Borman is a normal Victorian girl who lives with her brother, Henry, and parents in Staines and is very happy. One day in 1871, Emily and Henry are sent down to the river for the day when their parents have some business to attend to. However, things take a turn for the strange when Henry hurts an innocent swan and gets both children turned into swans. With the help of some new special friends, Emily and Henry embark on a little adventure to seek out the mysterious Swan Master for forgiveness and to be turned back into humans.