Oh, what a sweet sight. Mary-Jane, bound and gagged. Well, maybe not bound and gagged... but certainly locked in a cellar! I'm not saying that's a good thing, but it's better than being spread over the Atlantic Ocean.
By the way, perhaps Mr Mackie needs to travel a little more often, because then he might know that when you get off an internation flight, they do remove all your baggage, and make a note of it on the passenger list! But if Mary Jane is truly returning, then I'm prepared to ignore a couple of gaping plot holes... (again).