Catch up with Professor Layton before the Last Specter arrives

This trailer for the latest Professor Layton game, the Last Specter, gives us a refresher on the story so far -- including characteristically hilarious moments, like a super-serious cutscene transitioning into a puzzle about stacking hamburgers.

Here's the confusing bit: since Last Specter is actually a prequel, set at the time of Layton and Luke's first meeting, none of the things being recapped have happened yet in the new game. This would probably be a lot harder to deal with if we actually tried to pay attention to the stories in Layton games.