The final showdown begins. They have implanted a radioactive marker in the body of fujimaru. They'll celebrate later, but they're still not done with the mission. They can't stop kamishima, but he's got to get rid of him pronto. He's running a marathon in the middle of nowhere, and he sees a rubber boat abandoned by the terrorists. They let him follow them, but abandoned the gear they were sure he'd see. He finds a drainage pipe that leads to a water treatment plant. This pipe is perfect for the terrorists because it's underground, and they don't need anyone else to get in. They know the location of the rendezvous point, so they'll be able to track them down.