After retrieving and reforming the Zeo Crystal, the Rangers used it to restore their powers, this time becoming Zeo Rangers, wearing the respective shape of their Crystal on their visors. Armed with Zeo Zords created by Billy and Super Zeo Zords given to them by an alien visitor, the Zeo Rangers defended Earth against invasion from the Machine Empire.
After the Command Center was destroyed, the Rangers retreated to the Power Chamber, located underneath the original Command Center. The exterior structure was rebuilt, and became a second Power Chamber, which was destroyed by Divatox in Power Rangers Turbo