As he prepares for his Comeback Special, Elvis gets targeted by the Manson Family while a covert organization seeks to recruit him to its ranks.

Elvis returns to Vegas and encounters Howard Hughes, a gang of evil spies and a nuclear airplane, while Bertie deals with Scatter's reckless behavior.

Before Elvis performs at a USO event in Vietnam, he and CeCe meet an unexpected contact as they investigate the possible use of the mind-control weapon.

As an Elvis fan convention takes place at The Peabody Memphis hotel, the singer experiences a wild, drug-fueled trip courtesy of Professor Leary.

Elvis tries to stop the mind-control weapon from ruining his "Aloha from Hawaii Via Satellite" concert. To help, a stoned Scatter launches into space.