In America, Dr. Cayre witnessed a battle between Thor and the Air-Walker android. Though the Air-Walker android was temporarily destroyed, Cayre got his hands on a small piece of the alien android, which was equipped with self-generation technology. Cayre worked with Machinesmith, who gave him a Life Model Decoy (LMD), which Cayre used as his assistant, Norm. Cayre developed a prototype of the Air-Walker and then eventually rebuilt the android itself with the aid of Norm the LMD. In addition, Norm the LMD, who contained a nuclear warhead, went missing.