In his mundane existence as a lonely office worker, Johnson yearns for a life filled with wanderlust and excitement. However, a surreal encounter triggers a recollection of vibrant memories featuring the renowned space outlaw, Cobra. Armed with the formidable Psychogun on his left arm, Cobra and his companion, Lady Armaroid, roamed the cosmos as a notorious duo, striking fear in authorities and earning the ire of the Pirate Guild—an alliance of the galaxy's most formidable buccaneers. Amidst a fateful casino rendezvous on Earth, Johnson's fortunes take a dramatic turn, bringing him face-to-face with the establishment's manager—Vaiken, the Pirate Guild's leader defeated by Cobra in Johnson's dream. Mistaking Johnson for the legendary Cobra, Vaiken seeks retribution, inadvertently activating the dormant Psychogun concealed beneath Johnson's arm. This triggers a flood of suppressed memories and alerts Lady Armaroid to their presence. Emerging victorious over Vaiken once more and with his past unveiled, Cobra emerges from seclusion to thwart the Pirate Guild's cosmic criminal empire. Joined by Lady Armaroid, they navigate the vast expanse of space, embarking on daring escapades while championing the downtrodden victims of the Guild's nefarious activities.