The wildlings are build a turtle (a wooden roof to hide under while they break into the tunnel through the wall). But Jon Snow is in command of the wall and comes up with the excellent ruse of dropping barrels of gravel and ice on them. It works and the wildlings are repelled once more. So he goes for a nap. So far so good. Eventually they might break through since there are so many of them and the Watch will eventually run out of supplies, but for now, Jon is doing well. And you never know, there might be some good news around the corner.
Except no. Ser Alliser, who has always hated Jon since he stopped Ser Alliser from bullying Sam, turns up from another castle on the wall and accuses Jon of being a turncloak for spending all that time with the wildlings at the command of Qorin Halfhand. And a captured wildling has spilled everything about how Jon killed Qorin and got all friendly with Ygritte.
So despite saving Castle Black at least twice, Jon is now totally screwed. It's going to take a miracle to get out of this situation.
