After reading an advertisement advocating a visit to Canada, our intrepid adventurer (Buster Keaton) jumps into the Thames and swims all the way there! Once he arrives - remarkably dry and fit - he commandeers a railroad engineer's truck and embarks on a musically enhanced (think Ry Cooder morphing into some lively harmonica) journey at break speed across the 3,500-odd miles from east to west. Along the way we travel through some beautiful (and not so) countryside stopping only briefly when his wheels eventually need oiling after he grinds to an halt! It's a visit Canada production and the…