Connell and the others are trapped in the tunnels, and they’ve realized that the only way out is through.They need to reach the dense mass and cross over to the other side in order to, hopefully, reach the Linus Highway, the path Angus and Randy took to secretly enter the tunnels in the first place. Meanwhile, Kayla Meyers continues to stalk the group, looking for a chance to cut them all down. And, up on the surface, Sonny McGuiness has to find the courage to face up to his fears.