This is a list of episodes and episode summaries for the Macross Frontier anime series.
Due to repeated Vajra attacks, the Frontier Colonial Fleet's government approves a proposal to initiate a long-distance fold jump to escape from the Vajra assaults. As a result, all resources are being rationed. During this time, Sheryl tries to confront O'Connor about recent events but learns some very unpleasant revelations from her former manager. Distraught, Sheryl ends up walking alone in the rain searching for Alto when she collapses on the sidewalk due to her illness. Suddenly, help arrives from an unexpected source: Alto's adaptive older brother.
As the Colonial Fleet celebrates the success of its long distance fold jump, Ranka's pet Ai-kun suddenly disappears. Ranka and Brera look for Ai-kun together, ditching the victory parade where Ranka is the guest of honor. Along the way, Brera asks Ranka who does she sing for. Ranka, who's beginning to feel doubt about her singing, starts to consider her true feelings.
Meanwhile, Alto sneaks into the Satome Estate to visit Sheryl, who tells Alto that she will no longer sing. Alto leaves in frustration to go to Ranka's concert at Mihoshi Academy, where he and Michel are participating as stunt pilots. As the concert goes into full swing and Alto realizes that Ranka is singing for him, Sheryl quietly watches from a distant hill and decides she is going to walk away, but is stopped by Michel's Zentrandi sweetheart and SMS pilot Clan Clang.
In the ongoing war against the Vajra, people lose their loved ones and their hatred grows. The effects of Mishima's conspiracy grow larger and alter the lives of everyone inside Frontier. Refusing to be a singing tool for Mishima and wanting to discover the truth about her past memories of the 117 Research Fleet, Ranka tells Alto that she loved him as she leaves the colony with Brera and her Vajra pet, "Ai-Kun" on a mission to seek out the Vajra.
The Frontier populance's hatred of the Vajra is growing by leaps and bounds, and even Alto and Luca cannot control their own hate. Meanwhile, Sheryl decides to sing again with a brand new perspective, and Luca discovers that Sheryl's singing can now generate faint fold waves like Ranka's because of her V-Type virus infection. However, this is only possible because Sheryl's infection has reached a terminal stage where it can no longer be cured. Alto learns of Sheryl's illness and promised Sheryl that he will stay by her side until the very last moment.
Due to insufficient resources in the Frontier Fleet, food is being rationed. As even oxygen is being lowered inside the colony. Alto, as he had promised, is taking care of Sheryl. They shared a peaceful dinner together that Alto prepared. Later, Alto receives a detailed briefing from SMS owner Richard Bilrer and Mishima about the nature of the Vajra, the power behind Ranka's song and the threats they pose to Frontier's survival.
Meanwhile, Brera and Ranka arrive at the Vajra home system. Despite her efforts to show that she is peaceful, the Vajras led by Ai-Kun capture Ranka while she realizes that Brera is in fact her real brother. While fighting his way towards Ranka, Brera encounters O'Connor and she tells him also that Ranka is his biological sister, but then takes total control over him using an obedience override in his cybernetic implants.
The fold waves from Ranka's song are detected by both Macross Quarter and the Frontier Fleet. Having pinpointed the location of the Vajra home system thanks to Ranka's song, both the Macross Quarter and the Frontier fleet travel toward it.