With the arrival of the U-17 World Cup, youth tennis teams from all around the world gather in Melbourne, Australia to determine which is the best. With nine-time champion Germany vying to defend their title once more, and powerhouse nations—Switzerland, France, and the United States—determined to make things interesting, the road to victory is perilous. Although Japan is sitting at the bottom of the rankings, the addition of the nation's strongest middle school players has reinvigorated their chances at winning. Captained by the ruthless Houou Byoudouin, Japan is ready to show the world what they are capable of. However, before the real competition starts, the teams will have a chance to prove their strength through exhibition matches. As luck would have it, Japan is slated to face off against defending champion Germany—a match they are likely to lose. To make matters worse, old allies have suddenly reappeared as sworn enemies. Before Team Japan crumbles under the pressure of the international stage, they must rise from the ashes and claim the title for themselves.

In the years following a vicious war, the Empire of Zol now controls the land and citizens of rival Aquafa—except for Aquafa's Fire Horse Territory, where wild dogs that once carried the deadly Black Wolf Fever continue to roam free. When a pack of dogs race through a Zol-controled mine, Van, an enslaved former soldier, and a young girl named Yuna are both bitten, but manage to escape as the sole survivors of the attack. Finally free, Van and Yuna seek out a simple, peaceful existence in the countryside. But as the deadly disease once again runs rampant, they find themselves at the crossroads of a struggle much larger than any one nation.

Three years since the return of the legendary Space Battleship Yamato, Earth has begun rebuilding itself and has made peace with the Gamilans. However, this recovery comes at the cost of utilizing the forbidden Wave Motion technology. Meanwhile, the notorious former crew members of the Yamato, who have each gone their separate ways, receive a psychic message from the mysterious Goddess Teresa. She urges them to return to their beloved ship and travel to the distant planet Terezart. They are promised a revolutionary power to combat the unprecedented threat of the relentless Gatlantis Empire, who are approaching Earth with all but innocent intentions. Unable to resist her plea, the crew reassembles and sets sail on another perilous intergalactic voyage, one that will test their sheer courage and versatility in the face of an even greater foe.

2199 AD. Yamato tried to leave behind the Large Magellanic Cloud galaxy, after receiving a "Cosmo Reverse System" at its destination, Iscandar. However, suddenly, it encounters a mysterious group at the edge of the Large Magellanic Cloud. The crew finds out that the group is called the "Gatlantis," and that its leader is the Gutaba expeditionary force commander who calls himself "Goran Dagaamu of Thunder." The commander demands that Yamato be handed over to him. Yamato, wanting to hurry to Earth, escapes the fray. However, Yamato is attacked by a devastating beam weapon called the "Flame Direct Attack Cannon" that can transcend space. Yamato was able to retreat, but ends up getting lost, and finds itself in a strangely colored irregular dimension. The crew decides to turn off the engine on the ship, and explore a mysterious planet. In order to collect information, Kodai, Kiryū, Sawamura, Niimi, and Aihara land on the planet. What they saw when they arrived was a ship that was not supposed to be there. Dagaamu chases after the traces of Yamato's warp, and also reaches the strangely colored space. The planet on which Yamato landed was in fact what Dagaamu had been looking for all along.