They were in the control room but had screwed up the timing of there landing and it was shift change luckily the guards they took out did all were scheduled to do double night shift. While they were checking the cameras they discovered there was an underground part of the facility. In the underground facility they were keeping 15 workers hostage. The boys could not just leave them all to die in the explosion. Now they also had to plant more explosives. So first they changed into camouflage clothes with wet suits underneath. When they were changed they made there plan. The plan was that rat would go to the far side of the underground facility and plant half of the explosives on the far side. While Rat was doing that Chris would climb the pipes on the ceiling and plant some explosives there. Then he would put a stick of dynamite tied into a detonator on a wall for a last option escape root. While they were doing that Connor would go and check on the other explosives and blow open the armory and bring down weapons for the workers so that they could guard each other. This plan would only work if nothing went wrong they all knew. Now as they were finishing there plan they heard footsteps so they hid.