The salesman at the door explains that you could keep your family safe if you would apply with his company, and remain safe for all eternity if a disaster in the future would begin to occur. Also, he said that with Bunker-Tech, you would be secure enough against stuff that could kill you, including time itself.
"Very soon, an enormous atomic explosion will come, and destroy this entire world," the salesman explains. "Luckily, far from here is shelter for everyone in this neighborhood, offered by Bunker-Tech called "Bunker-145". You decide to take that offer, so you accept. "I accept this offer for the sake of our lives," You says. "Splendid," the salesman explains, and gives you the clipboard, along with the pen that it was with to help sign. "Just write your names, your family positions, and your attribute numbers. It won't take long."