Geronimo Stilton is a mouse who runs a newspaper in New Mouse City. On a field trip to Niagara Falls with his nephew, Geronimo is the target of mouselet schemes to send him over the Falls in a barrel.
Geronimo Stilton accompanies his nephew Benjamin's class on a field trip to Niagra Falls and encounters mischievous young mouselets who are determined to send him over the falls in a barrel.
