This is great! I'm really impressed with how you're keeping the two Sams clear. Granted, this is from QL!Sam's POV, but still, could be confusing.

I don't really remember anything about QL except that he, you know, leaped into people, but I love how their SOP goes all haywire with the Winchesters involved.

Sammy and Dean are really great, very in character and I love how they know something's up. "Don't let them kill you"--great advice, but a little late now, maybe, because Dean's been in the car and QL!Sam doesn't know why.

Onto chapter two!