Rugrats. Mysteries / Klasky-Csupo and Nickelodeon ; producers, Susan Ward [and others] ; writers, David Regal [and others] ; directors, Chris Hermans [and others].

The whole gang's along for an overnight train ride through a re-created town from "the old country". But the ride quickly takes a mysterious turn when Chas reads about a train robber on the loose. And when Chuckie's necklace disappears, its up to Tommy to get it back.