Danger Mouse and Penfold get a visit from Penfold's aunt, but while they were having time with her, she is suddenly snatched away, along with the Statue of Liberty from the U.S.A. D.M. and Penfold soon realize that Greenback is behind the theft and the kidnapping, and so it's up to them to stop Greenback and save Penfold's aunt, being very careful of the dangers they soon face.