I've seen one amnesia prompt already, but that was a global amnesia prompt, so hopefully this won't be treading on their toes. At some point early in the film, Kylo Ren gets a bad knock on the head and, when he wakes up, he's Ben Solo again. He's confused to find himself in a First Order base, and just wants to get back to his family. So he steals a ship and goes looking for the Resistance. Along the way, he runs into Han, Finn, Rey and Chewie in a state of some confusion at everything that's happened. Cue angst and Skywalker-Solo family feels.