The Treasure Of Manhattan Island (1998): Fievel the Mouse returns in the third installment in the An American Tail series. Fievel (voice of Thomas Dekker) and his friend Tony Toponi find a map that they believe points to a treasure buried somewhere beneath Old New York, and the plucky rodent is determined to find it. However, what he discovers under the city is a tribe of Native American mice who were driven underground by prejudiced European immigrants. Fievel makes new friends with the outcasts, and he comes to realize that they have the same right to live freely in America as anyone else.

The Mystery Of The Night Monster (1999): Fievel, Tony, Tanya, Tiger, and their new friend, hot-shot reporter Nelly Brie, are on the trail of an alleged mouse-nabbing monster, rumors of which have made Manhattan's rodent population tremble.