The northern section of the SBB's Gotthard Line is the setting for our journey with the historic ex-TEE "Grey Mouse" set, now no longer in service.  We leave the historic city of Zurich to run past Lakes Zurich, Zug and Lucerne to the Gotthard pass.  Along the way we visit old Zug, the Swiss Army Knife factory, an enchanting animal park, and see an old horse-drawn post coach on the pass road.   German commentary and music.  R/T 51 minutes.