As tensions escalate within the Frontier government, suspicions mount as Sheryl Nome's arrival sparks accusations of espionage for the Galaxy. Amidst this turmoil, childhood companions Alto Saotome and Ranka Lee pursue their aspirations while the looming conflict with the Vajra looms ever nearer. This film amalgamates elements of the original Frontier series with fresh conspiracies, setting the stage for a captivating narrative that will continue in the sequel, The Wings of Goodbye.