Jerry invites his parents over for Christmas dinner with the family, but realizes that, in the time since he last saw them, they've developed a strange relationship with a boy named Jacob. Rick gives a homeless man named Reuben a "health check," and Morty is injected inside Reuben's body to fix an amusement park that Rick has built inside the man's body.
Did You Know?
Someone on the production crew pulled a microbiology in-joke. At the bone train station, critters which Dr. Bloom identifies as E. coli are actually closely patterned after Enterobacter phage lambda, a virus that infects E. coli. See more
The E. coli that attack the train are shaped like bacteriophages, which are viruses. E. coli is a type of bacteria, not a virus. See more
[Morty is making out with Annie, after he's rescued her as they're trying to escape from Anatomy Park
[to Morty, whispering
You can put your fingers wherever you want.
Morty, you want to put it on mute or something? I'm trying to concentrate!
Spoofs Fantastic Voyage