Lassie - Episode

The Martin family takes a trip by train to Chicago so that Paul can attend an agricultural exhibition for the Grange, as well as to visit Ruth's mother and family. Lassie also goes on the same trip but has to stay in the baggage car. When her crate falls off the baggage car due to a careless baggage handler, two concerned truckers try to help her get back to the train.
TRIVIA: This was probably the trail run to the development of the 3 part episode "Lassie's Odyssey" that is shown in Season 8.