Sogo's Quickboard crashes are causing him to have a bad day. Then he gets trapped underground, and his day gets even worse (to the tune of giant robots).

After a close call in the cave, Sogo and Co are safe at home once again. The only question now is, what to do with the mysterious girl they've found. Not to mention the peculiar little animal...

There's a storm approaching Garden Indigo, one that comes roughly every forty years. Do Mon panics at the weather report and decides that the broken roof must be repaired.

There's a storm approaching Garden Indigo, one that comes roughly every forty years. Do Mon panics at the weather report and decides that the broken roof must be repaired.

Someone has kidnapped Felia! Sogo and Moura set out to try and track her down, but soon find themselves under attack.

To return Felia to normal after her release of power, Sogo and the others must bring her to the Altar of Abyss. On the way they stop by a village, where a wedding has everyone in a festive mood.

The group continues on the mountain road to the Altar of Abyss. But after Air Rider breaks down, they end up having to spend the night in the mountains, where danger awaits.

Sogo's group decides to take the waterway through the forest to get to the Altar of Abyss. But Do Mon warns them not to go any further.

Sogo, Felia and Moura go on ahead of the group, but get ambushed by government forces near the Altar of Abyss. Meanwhile, Do Mon infiltrates the Bureau in order to meet with a certain person.

Sogo, Felia and friends finally reach the altar. As the ritual to replenish Felia's power begins, an unbelievable spectacle suddenly unfolds!

The battle over Felia unfolds at Fongerufu. Sogo and the Guardian's fight with the mysterious "Black Giant" increases in intensity. What is the true goal of the "Black Giant" who seeks Felia?