The remnants of the ranging have made it back to Craster's place. Lot's of them are dying and Craster is being a bit stingy with the food, so it all kicks off. I'm a bit vague about what the Watch does for Craster apart from not kill him, but they strike me as a little entitled, to be honest. "Mind if I bring 30 of my friends, and can you feed us all for a few weeks, too?"
Mormont has it right but loses control of the men. In quick succession, Craster's wife/daughter/niece Gilly has a baby boy, significant because we think Craster will leave him to die in the woods as an offering, and a fight breaks out leaving Craster and Mormont, among others, dead.
Sam needs to leave, but Gilly and her sisters urge him to take Gilly and the baby because, drum roll... The Sons of Craster are coming! Not as dead in the woods as we thought, are they? Are they wights, or something else?