ques re: Murdoch Mysteries

In one of the reruns last week the plot had Dr. Ogden
in a carriage with Murdoch's *son*, who apprently has
been in a boarding school (?!) and.. they get kidnapped.
I don't recall this arc with a son and he seems to
have disappeared from any later episodes.
Anyone remember this/have some details?  Thanks
_____________________________________________________
Knowledge may be power, but communications is the key
       dannyb@panix.com
[to foil spammers, my address has been double rot-13 encoded]