Despite Cancer's attempt to convince Bullhorn and Wilder to stay with the Cybertrons, they fly off in their robot modes, leaving him behind. Giga and Mega begin to have their first doubts of Devil Z. Meanwhile, unable to defeat Ginrai despite their best efforts, Buster and Hydra decide to take the final step and abandon their frail human bodies altogether. Devil Z takes them into his dark dimension and converts them into mechanical beings, fusing them completely with their transtectors so that they are reborn as super robot lifeforms. Devil Z then starts its all-out attack on North America by concealing itself (and Black Zarak) in the Grand Canyon. The Cybertrons assemble a strike force to stop the menace, most of them trying to help the survivors while Super Ginrai goes to the Grand Canyon with Godbomber and the Headmasters. There, he is confronted by the new Buster and Hydra. while the Seacons surround the Headmasters. Bullhorn and Wilder show up to help the Headmaster Jrs., while Go