In episode 5, Harvest, the Kid is released from Shawshank Prison, thanks to Dennis Zalewski’s
heroic efforts shooting spree, which has left the prison exposed and liable for much more than just a prisoner held without due process. Kid’s suddenly a free man, living on the outside, as much as living in Castle Rock can be called free or living in the normal world.
Kid doesn’t know how to handle it at first, but he gradually reacclimates over the course of the episode, and even seems like he gets his memories back. Molly spends some time with Kid and doesn’t like what she finds in his head. Henry attempts to remain oblivious to anything unusual happening. He’s got a plane to catch, and nothing is going to stop him.