In the 1860s Wild West, a ragged bunch of misfit settlers decides they cannot stand living in their current situation and they hire a grizzled cowboy to take them on a journey back East to their hometowns.
Phoebe and a fellow American in Rome find a dog with a $5000 reward. They take a train to the owner in Monte Carlo. She turns up murdered. They run and become suspects just as 3 other Americans on the train.