Marley the dog takes the train into Toronto by himself

[Catherine]

He is beautiful and clever. He had to walk into the station and get up onto a train platform and then board a train. He did it without drawing attention until he was partway into Toronto on the train. 

If he had made it to Union Station without "rescue" he would have been lost like the rest of us. It has been under renovation for years. Assume anywhere in Toronto is under renovation or is a construction zone. Most of the time you would be right.  

Yes it is a good thing Marley had a collar with information so his people could be reached right away.