Season 5, Episode 18: "The Raincoats"

It turns out that the kid's father lives in Paris.

Is that a coincidence?

Alec wants me to take him over there.

So I figure as long as they're going--

You thought as long as they're mailing postcards,

it wouldn't be too much to ask my parents

to drag a child who they've never seen

through the streets of Paris?