The survivors of the 15th Tactical Squad plan a daring mission to thwart the plans of the Robotech Masters, who have virtually crippled the United Earth Government defense forces. The young heroes come face to face with the dreaded Robotech Masters in a no-win situation, which must be faced if the Earth is to survive.

The Earth is surrounded by Dolza's armada of over four million vessels, sent to destroy the Earth & the SDF-1. It's a time for final reflections, and a last attempt to defeat the vastly superior forces of the Zentraedi by Earth's Robotech Defenders!

Dana Sterling leads her 15th Tactical Armored Corp, into the fallen flagship of the Robotech Masters, in daring recon mission ordered by the supreme leaders of the United Earth Defense forces. This military tactic was anticipated by the Robotech Masters, who relish the opportunity to capture a few human specimens, dead or alive!

Rolf Emerson leads the Tactical Armored Space Corp into battle with the Robotech Masters. A new Robotech device, born in the convoluted mind of Corporal Louie Nichols, is pirated by the Military Police for use as a tactical weapon! Resentment is cast aside, as the anticipation of the battle begins to affect the 15th Squad of the Tactical Armored Corp.

A battle rages between the Robotech Masters and the entire interstellar fleet of the United Earth Government! It is a crucial battle, which could decide the fate of the two civilizations. Utilizing advanced weaponry, and fighting with renewed vigor, the stage is set for a battle royale.

The survivors of a critical battle against the armada of the Robotech Masters, return to Earth. Bowie gets his friends in the 15th Squad to help him smuggle his newfound love, Musica, past the Military Police, but the plan backfires, requiring Bowie & Musica to flee for their lives!

A desperate situation calls for extraordinary measures by the 15th Tactical Squadron, and the mysterious Zor, if the Earth is to survive the final offensive mounted by the Robotech Masters, as they try one last time to recover their rapidly mutating supply of Protoculture, before the arrival of the Invid.

Khyron plans his ultimate revenge, targeting the SDF-1, and the currently under-construction SDF-2.

An advanced recon vessel blasts into the vicinity of Earth from hyperspace, only to find their home planet surrounded by an armada of gigantic alien warships! Unable to make contact with Earth, and remembering what happened to their planet in the past when it was invaded by the Zentraedi, the crew of this heavily armed starship make a desperate decision, to meet the alien armada with a surprise attack. The outcome of their effort is uncertain.

The United Earth forces pull together to mount a full scale attack on the armada of the Robotech Masters. Dana Sterling & the 15th Tactical Armored Division are left behind. It is a plan masterminded by Commander Leonard, a command that did not pass by the mysterious Robotech Elders.

The control of space in the immediate vicinity of planet Earth forms the battle strategy mapped out by Supreme Commander Leonard, as he forces his entire fleet of cosmic warships to engage the armada of gigantic alien battle cruisers in combat. It is the classic situation of David & Goliath, only this time, the legendary rock hurled by David is a massive barrage of laser cannons and powerful proton torpedoes! The Second Robotech War may not turn out the same as the first. The Robotech Masters are playing for keeps, with their entire civilization at stake the odds are too great to permit failure.

The Robotech Masters try to establish a base on Earth, near the vicinity of the fallen SDF-1. Once here, under the direction of Zor Prime, the alien force hopes to extract the Earth's remaining supply of Protoculture. A routine patrol for Dana & Bowie turns into a nightmare.

Dana Sterling tries to keep her mind on business, while she struggles to shake off the aftereffects of a near fatal meeting with the warriors of the Robotech Masters. Her mind fills with haunting memories, which lead her to believe that she is related in some strange way to the mysterious aliens who have come to Earth to claim their lost Protoculture Matrix.

Outright rebellion becomes the first order of the day, as Musica and Zor reject the teachings of the Robotech Masters and turn to aid the human captives. It is a fantastic journey in ultimate truths for Zor, as his originator's memory comes back to haunt him.

Bowie & Musica become fugitives, fleeing from a trap set for them by Nova Satori. At the site of the SDF-1, amid the wreckage of the First Robotech War, they make a startling discovery concerning the nature of Protoculture, and the relationship of this mysterious energy force to the Invid. Learn the secrets of the Invid Flower Of Life!

Lisa Hayes makes a rash decision to return to Earth, to try for a final time to convince the heads of the United Earth Government to negotiate with the Zentraedi armada. The journey back to Earth is not without incident, as Rick & Max cut a path through the enemy lines.

A new threat has surfaced, for the next generation of Robotech Defenders, who have grown up in the wake of Earth's first victory over their alien invaders. Calling themselves the 'Robotech Masters', this ancient race of techno-voyagers has come to the Earth to claim the mysterious substance known as Protoculture.

It is decided to induct Zor into the Army of the Southern Cross, in the hopes that an association with a military environment would spur his lost memory, and provide some important clues to the origin & tactical strength of the Earth's powerful and mysterious interplanetary enemies, the Robotech Masters. Lt. Dana Sterling relishes the assignment of turning Zor into a human being! It is an assignment which brings her closer to solving a personal mystery surrounding her own origins, as well as giving her an opportunity to test her charms as a woman on an unsuspecting subject.

The war against the Robotech Masters has escalated into a serious military confrontation, with neither side willing to make even the smallest concession to avoid turning the planet Earth into a living battleground. The United Earth Defense Forces plan to take the battle into space, to protect their homeworld and challenge their alien foes. Using the main bulk of their Tactical Armored Space Corp, the Robotech Defenders plan to test the mettle of their mysterious enemies.

As Rick recuperates, Roy tries to convince Minmei to break away from her busy schedule, and drop in on her injured friend. But the Zentraedi threat looms large in the skies above Earth, and Roy prepares to go into battle... perhaps for the last time.

The Robotech Masters bring the war to Earth, as they attempt to reclaim their lost Protoculture. The 15th Tactical Armored Corp is put to the test.

Lt. Nova Satori begins a complex psychological profile on a captured alien Bioroid pilot, identified only as Zor. The Supreme Command of the Army of the Southern Cross believes that the debriefing of this particular alien, might provide them with the key to unlock the riddle of this new interstellar war. Meanwhile, Dana practices on a battle simulator hoping to explain her empathy for this captured alien, and to end any doubts about her ability to defend the planet.

Dana Sterling & the 15th Tactical Armored Corp are held prisoner, captives of the Robotech Masters. During their imprisonment, many secrets concerning the true nature of the Robotech cloning process are uncovered!

Held captive in a Zentraedi prison cell, Rick, Lisa, and Ben try to figure a way off the massive alien ship, and report their findings to Captain Gloval & the crew of the SDF-1. Breetai & Dolza also begin to make plans to recapture their lost battle fortress.

Captain Gloval begins a journey, which he believes will end with the resettlement of the nearly 70,000 refugees stranded on the SDF-1. Meanwhile, Khyron's flotilla responds to the developments with an attack on the battle fortress. Captain Gloval is torn between saving the citizens of Macross City, and his oath to protect the Earth.