5 second plot: Walden wants to ask Kate to marry him. But then a beautiful stranger pops up and Walden feels like this could be his soul-mate. Gretchen finds out that Jeff Strongman is actually Alan Harper. There is also a lot of nut-kicking and Charlie's ashes go flying around the house again.
5 second review: Mila Kunis showing up? A That 70's Show reference? A couple of movie references? Am I in heaven?
Our score: 10/10