An all out attack is called for, this time incorporating the ground forces of the Army of the Southern Cross. Dana and her squad respond only to be captured in the end by Zor, who has been reactivated by the Robotech Masters to become a Bioroid Captain once again.

Louise Nichols, a member of Dana Sterling's squad, builds a Robotech device that is exploited by the Military Police into an offensive weapon system. The deception causes Louise to break down and attack her friends and fellow soldiers.

A classic Cinderella story unfolds as Marie Angel and Sean Phillips plan a very important date. Things don't turn out for the best and Marie ends up running away from the truth of Sean's past.

Things on earth are settling into a pleasant domestic routine while the Robotech Masters and their bioroid army fights for their very survival against the pressure of the Tactical Space Corps of the Army of the Southern Cross.

General Leonard calls for an all out attack against the Robotech Masters forces in Earth orbit near the moon. The plan does not include the 15th Tactical Squad, which spends most of its time trying to help Zor regain his memory at the crash site of the SDF-1.

Captain Gloval plans a daring strategy to convert the SDF-1 into a robotic configuration to do battle with the Zentraedi forces.

General Leonard is convinced that Zor can help his army get information regarding the Robotech Masters (whether he is human or not). He assigns Zor a commission in the 15th squad and places Dana Sterling in charge of his "rehabilitation." By this time, Dana has begun to feel somehow related to this new recruit – alien or not.

Zor, the Robotech Master's unsuspecting spy, is subjected to rigorous psychological tests to determine if he is human. Dana cannot allow him to go unchallenged for the destruction he has caused and plans a daring midnight raid on the hospital where Zor is sequestered to extract her revenge.

The Robotech Masters plan a strange deception by introducing Zor into the ranks of the 15th Tactical Squadron of the Army of the Southern Cross in the hope of getting some information regarding earth's knowledge of protoculture.

Dana Sterling tries to get the war with the Robotech Masters out of her mind by attending a concert with Bowie. She meets a singer who she finds interesting only to discover later that he is a spy working for the military police.

Failing in their attempts at capturing the humans who entered their ship, the Robotech Masters plot to raid a nearby city and capture as many humans as they can in order to experiment and see if they should fear this minor group of creatures calling themselves earthlings, or if they should continue to concentrate on recovering their precious protoculture before the Invid, the mortal enemies of the Robotech Masters, come looking for their next meal of protoculture matrix – something they call "the flower of life."

Dana's 15th Alpha Tactical Armoured Corps succeeds in breaching the hull of the fallen alien vessel. They proceed through the gigantic ship in the hope of discovering any information concerning this new threat. What they don't realize is that they are falling into a trap set by the Robotech Masters as they also need to get information concerning their new enemy and to determine how much this civilization knows about the mysterious substance known as protoculture."

After successfully shooting down the giant alien ship, a ro-con mission is called for. Once again Dana's group is volunteered for the dangerous mission. On the eve of this dangerous mission, the members of this courageous squad prepare for battle, each in his or her very own way.

A gigantic Flagship from the Robotech Master's interstellar armada is flying closer and closer to the earth. It is decided that a direct offensive against the battleship is needed. Dana Sterling's 15th Tactical Armoured Corps is called into action to solve this new crisis.

On a routine patrol, Dana Sterling and Bowie Grant discover a plot by the Robotech Masters to excavate around the site of the final destruction of the SDF-1. Bowie is captured and it is up to Dana to affect his rescue.

In order to accommodate vital military intelligence information, the Supreme Commander of the Army of the Southern Cross asks for volunteers to re-establish communications with an isolated space station, earth's only link to the Robotech defenders who have gone into the cosmos in search of their homeworld.

Rick and Minmei find themselves trapped inside an unexplored area of the gigantic Space Battle Fortress.

A counter-attack by the United Earth Forces causes the Robotech Masters to re-evaluate their plans to regain the protoculture factory. Although there are no precise winners, the battle lines are being drawn.

The Robotech Masters have finally arrived near the vicinity of the earth. They are so certain that there will be no resistance offered as they try and recover their lost protoculture factory that the strong fighting spirit offered by the citizens of earth confuse the zealous interstellar techno-voyagers.

It is fifteen years later and Dana Sterling, the child of Miriya and Max Sterling, recalls the turbulent romance that her parents had in order to put to rest the fears of a new recruit in the Army of the Southern Cross, the earth's latest defense force.