As Full Frontal attempts to seize Laplace's Box, Gael's Silver Bullet stands in his way, only to be crushed by Frontal's overwhelmingly superior firepower. Seeing Gael's plight, Banagher summons the Unicorn Gundam. Riddhe also joins the fight with his Banshee Norn, and the two Gundams confront the huge mobile armor Neo Zeong. However, Frontal uses the Neo Zeong's psycho-shards to destroy all of the Gundams' weapons. Luring Banagher to the end of space and time, he tries to plant the seeds of nihilism and despair. But Banagher refuses to give up, and he is aided by the thoughts of Lalah and others. In response, the Neo Zeong begins to self-destruct. Meanwhile, Ronan decides to use the colony laser to consign the Box to oblivion, and approves its activation.

As Full Frontal attempts to seize Laplace's Box, Gael's Silver Bullet stands in his way, only to be crushed by Frontal's overwhelmingly superior firepower. Seeing Gael's plight, Banagher summons the Unicorn Gundam. Riddhe also joins the fight with his Banshee Norn, and the two Gundams confront the huge mobile armor Neo Zeong. However, Frontal uses the Neo Zeong's psycho-shards to destroy all of the Gundams' weapons. Luring Banagher to the end of space and time, he tries to plant the seeds of nihilism and despair. But Banagher refuses to give up, and he is aided by the thoughts of Lalah and others. In response, the Neo Zeong begins to self-destruct. Meanwhile, Ronan decides to use the colony laser to consign the Box to oblivion, and approves its activation.

Banagher's great-grandfather Syam Vist has been waiting for him and Mineva at Magallanica. In the first year of the Universal Century, Syam carried out the terrorist bombing of the Earth Federation prime minister's official residence, and he has used the Charter of the Universal Century that he obtained at that point, now known as "Laplace's Box," to do business with the Federation. However, troubled by the stagnant state of the Federation, he worked with his grandson Cardeas in an attempt to find someone who could be entrusted with the world's future. They used the Unicorn Gundam, which had the ability to discover true Newtypes, as the key to the Box. Having passed this test, along with Mineva, Banagher will now receive the Box from Syam and intends to use it for everyone's benefit. But then Full Frontal appears in the cold sleep room, claiming that he is the Box's legitimate inheritor. Banagher and Frontal begin a final battle over the Box.

Banagher's great-grandfather Syam Vist has been waiting for him and Mineva at Magallanica. In the first year of the Universal Century, Syam carried out the terrorist bombing of the Earth Federation prime minister's official residence, and he has used the Charter of the Universal Century that he obtained at that point, now known as "Laplace's Box," to do business with the Federation. However, troubled by the stagnant state of the Federation, he worked with his grandson Cardeas in an attempt to find someone who could be entrusted with the world's future. They used the Unicorn Gundam, which had the ability to discover true Newtypes, as the key to the Box. Having passed this test, along with Mineva, Banagher will now receive the Box from Syam and intends to use it for everyone's benefit. But then Full Frontal appears in the cold sleep room, claiming that he is the Box's legitimate inheritor. Banagher and Frontal begin a final battle over the Box.

Banagher struggles against the psycho-jammers of Angelo's Rozen Zulu. Meanwhile, as Riddhe confronts Marida, he is overwhelmed by a thought resonance phenomenon and destroys the Kshatriya Repaired. Marida's last thoughts reach Zinnerman, Mineva, and the others, warning them that the sector is dangerous. With the shock of her death, the Unicorn Gundam emits psycho-waves beyond measurement, and the bewildered Angelo destroys his own machine. With Zinnerman's help, the Nahel Argama successfully holds off the Sleeves fleet and reaches Industrial 7 airspace. At the same time, Bright enters the Cheyenne base to confront Martha and Riddhe's father Ronan. And at Magallanica, where Banagher and Mineva are headed, Syam Vist awaits.

Banagher struggles against the psycho-jammers of Angelo's Rozen Zulu. Meanwhile, as Riddhe confronts Marida, he is overwhelmed by a thought resonance phenomenon and destroys the Kshatriya Repaired. Marida's last thoughts reach Zinnerman, Mineva, and the others, warning them that the sector is dangerous. With the shock of her death, the Unicorn Gundam emits psycho-waves beyond measurement, and the bewildered Angelo destroys his own machine. With Zinnerman's help, the Nahel Argama successfully holds off the Sleeves fleet and reaches Industrial 7 airspace. At the same time, Bright enters the Cheyenne base to confront Martha and Riddhe's father Ronan. And at Magallanica, where Banagher and Mineva are headed, Syam Vist awaits.

As the Nahel Argama rushes toward Industrial 7, its course is blocked by Sleeves mobile suits. Unless it can break through the enemy lines, Full Frontal will be allowed to obtain Laplace's Box. Also standing in the way is Riddhe's Banshee Norn, which confronts Banagher's Full Armor Unicorn Gundam. Meanwhile, Bright learns from Kai Shiden that an operation is under way to activate the Gryps 2 colony laser and annihilate the Box, and he hurries in the Ra Cailum to the Cheyenne base where the control center is located. Riddhe, trapped by a blood curse, begins running wild. Despite her injuries, Marida comes to the rescue in the Kshatriya Repaired, and orders Banagher to go on ahead.

As the Nahel Argama rushes toward Industrial 7, its course is blocked by Sleeves mobile suits. Unless it can break through the enemy lines, Full Frontal will be allowed to obtain Laplace's Box. Also standing in the way is Riddhe's Banshee Norn, which confronts Banagher's Full Armor Unicorn Gundam. Meanwhile, Bright learns from Kai Shiden that an operation is under way to activate the Gryps 2 colony laser and annihilate the Box, and he hurries in the Ra Cailum to the Cheyenne base where the control center is located. Riddhe, trapped by a blood curse, begins running wild. Despite her injuries, Marida comes to the rescue in the Kshatriya Repaired, and orders Banagher to go on ahead.

Banagher is despondent now that Full Frontal has learned the final coordinates to Laplace's Box. Marida encourages him, saying that his chance will come if he holds onto his dreams. Meanwhile, Takuya and a few others have secretly called in a Federation Forces patrol ship and are awaiting the opportunity for a counterattack, but they are discovered by Angelo. Taking them hostage, Angelo demands the destruction of the patrol ship, and Captain Otto decides to dissolve the joint front. As fierce fighting unfolds, Banagher confronts Frontal. Mineva also takes a stand against Frontal's plan for a Side Co-Prosperity Sphere, and is joined by Marida. Zinnerman orders Marida to surrender, but her determination overcomes Zinnerman's hatred. Driven back by Banagher and Marida, Frontal and his comrades escape from the Nahel Argama and head for the Box's final coordinates.

Banagher is despondent now that Full Frontal has learned the final coordinates to Laplace's Box. Marida encourages him, saying that his chance will come if he holds onto his dreams. Meanwhile, Takuya and a few others have secretly called in a Federation Forces patrol ship and are awaiting the opportunity for a counterattack, but they are discovered by Angelo. Taking them hostage, Angelo demands the destruction of the patrol ship, and Captain Otto decides to dissolve the joint front. As fierce fighting unfolds, Banagher confronts Frontal. Mineva also takes a stand against Frontal's plan for a Side Co-Prosperity Sphere, and is joined by Marida. Zinnerman orders Marida to surrender, but her determination overcomes Zinnerman's hatred. Driven back by Banagher and Marida, Frontal and his comrades escape from the Nahel Argama and head for the Box's final coordinates.

Now on the run from the Federation Forces, the Nahel Argama has taken the desperate step of forming a joint front with the Sleeves. Though his crew resist the idea, Otto orders them to allow Frontal aboard the ship, in an attempt to learn his true intentions. Mineva likewise asks Frontal what he would do if he obtained the Box, and he reveals his idea of forming a Side Co-Prosperity Sphere that would strengthen the economic ties between the Moon and the Sides, excluding Earth and weakening the Federation. The disappointed Mineva predicts that this would result in further tragedies, but nonetheless she tells Frontal that the final coordinates for Laplace's Box are at Industrial 7's Magallanica. Meanwhile, Riddhe has received the Banshee Norn from Alberto, and he sets off in pursuit of the Unicorn Gundam.

Now on the run from the Federation Forces, the Nahel Argama has taken the desperate step of forming a joint front with the Sleeves. Though his crew resist the idea, Otto orders them to allow Frontal aboard the ship, in an attempt to learn his true intentions. Mineva likewise asks Frontal what he would do if he obtained the Box, and he reveals his idea of forming a Side Co-Prosperity Sphere that would strengthen the economic ties between the Moon and the Sides, excluding Earth and weakening the Federation. The disappointed Mineva predicts that this would result in further tragedies, but nonetheless she tells Frontal that the final coordinates for Laplace's Box are at Industrial 7's Magallanica. Meanwhile, Riddhe has received the Banshee Norn from Alberto, and he sets off in pursuit of the Unicorn Gundam.

With Banagher, Mineva, and the others aboard, the Garencieres takes off for space. It suffers engine trouble en route, but Banagher refuses to give up. As he struggles, the Unicorn Gundam is surrounded by a mysterious light, and its power brings the Garencieres safely to its rendezvous with the Nahel Argama. However, the Earth Federation Forces' General Staff Headquarters has decided to eliminate the Nahel Argama and the Garencieres due to their connection to Laplace's Box. As Banagher and the others return to space, they are confronted by the huge General Revil, the biggest warship of the Federation Space Force. They are saved from this desperate predicament by Full Frontal and his Neo Zeon fleet. Having escaped the General Revil's pursuit thanks to the Sinanju's attack, the Nahel Argama is forced to form a join front with the Sleeves.

With Banagher, Mineva, and the others aboard, the Garencieres takes off for space. It suffers engine trouble en route, but Banagher refuses to give up. As he struggles, the Unicorn Gundam is surrounded by a mysterious light, and its power brings the Garencieres safely to its rendezvous with the Nahel Argama. However, the Earth Federation Forces' General Staff Headquarters has decided to eliminate the Nahel Argama and the Garencieres due to their connection to Laplace's Box. As Banagher and the others return to space, they are confronted by the huge General Revil, the biggest warship of the Federation Space Force. They are saved from this desperate predicament by Full Frontal and his Neo Zeon fleet. Having escaped the General Revil's pursuit thanks to the Sinanju's attack, the Nahel Argama is forced to form a join front with the Sleeves.

The Garencieres launches an operation to rescue Mineva and Marida, and Alberto orders Marida to stop them. Herbage changes the Unicorn Gundam into Destroy Mode and confronts the Banshee. Meanwhile, Mineva has escaped Martha's hands, and rejects Riddhe's offer of help. Trusting that Banagher will catch her, she throws herself into the air. Just as Mineva hopes, Banagher saves her and takes her to the Garencieres, then heads back to the Garuda to rescue Marida and Zinnerman. Marida is controlled by her hatred of the Gundam, but Zinnerman's appearance disrupts her determination. In his anger, Riddhe reminds Marida that the Banshee is also a Gundam. She is ejected from the Banshee, and rescued by Zinnerman.

The Garencieres launches an operation to rescue Mineva and Marida, and Alberto orders Marida to stop them. Banagher changes the Unicorn Gundam into Destroy Mode and confronts the Banshee. Meanwhile, Mineva has escaped Martha's hands, and rejects Riddhe's offer of help. Trusting that Banagher will catch her, she throws herself into the air. Just as Mineva hopes, Banagher saves her and takes her to the Garencieres, then heads back to the Garuda to rescue Marida and Zinnerman. Marida is controlled by her hatred of the Gundam, but Zinnerman's appearance disrupts her determination. In his anger, Riddhe reminds Marida that the Banshee is also a Gundam. She is ejected from the Banshee, and rescued by Zinnerman.