It's been a long time coming, and now it's finally time for the humans to get out of the way of the ice giants. The ice giants are about to attack, and they're about to kill one of the men in the alpha squad. They're not going to let him stay in there, though, because he's going to die if he stays there. He's the leader of the squad, and he tells the rest of the guys that they've got to get to the top of the wall and stop the attack. They need to get close to the ice so that the ice monsters can't smell them. They have to make the ice monster eat them, and that's what they have to do.