![Spider Riders](https://image.chilimovie.com/region2/en/300px/20231027/eBPKjucEgM4Z8gncTV2X2Rp2T25.jpg)
The Spider Riders try to think of a plan to find Hunter and get out of the labyrinth. Mantid reveals to Hunter how the Invectids have lived in darkness without sunlight for most of their lives and offers to prove it by removing Aqune's mask and having her show Hunter around.
Beerain escapes from Mantid and tries to find Buguese to inform him of Mantid's true intentions, but is attacked by Aqune, who damages Beerain's wings. Hunter fights Buguese and traps Corona to protect her, believing that Corona no longer wishes fight.
Hunter fights Buguese's Battle Beetle, but cannot defeat it until Grasshop helps out by removing its regeneration component. However, Buguese reveals that he was merely distracting the Spider Riders while Aqune removes the Oracle Key from its chamber.
Hunter regains consciousness after Stags defeats him and continues to fight back. Buguese and Aqune attack Lumen and Igneous, who are defending the Oracle Key in its sanctuary.
Lumen and Igneous are travelling across forested land when they find Sparkle, who reveals she has been accompanied by her "Uncle Hop" - Grasshop. Grasshop must decide if he wishes to continue aiding the Invectids or help the Spider Riders, especially Sparkle, who reminds him on his own children and whose kindness has saved him more than once.
The Spider Riders are attacked by Invectids but lose them when their ship enters a strange fog. A mysterious ship appears before them and they meet the Lost Mariner, a sailor who once aided the hero Quake on his way to Nuuma.
Grasshop disguises himself as a woman, believing he'll be able to sneak into Castle Arachna to steal the Oracle Keys. The plan, like most of Grasshop's, goes awry and the Invectid is soon dismissed by from the Big Four.
Hunter accompanies Magma, who is travelling to a nearby village to find more information on Portia. Hunter meets Katy, an Invectid who lives among humans because she does not believe in fighting. She is captured by Grasshop and Aqune.
The Spider Riders have been facing Invectids everyday for weeks now and Corona is tired of fighting. Castle seer Lily offers to show Corona what her life would be like according to the Spider Rider's dreams.
Lumen is visited by Lady Noia, a childhood friend of his, who is revealed to be Beerain in disguise. She and Grasshop attempt to steal the Oracle Key, but finds that a lovesick Lumen keeps getting in her way.
Slate, an old friend and comrade of Igneous, returns to Arachna for a visit. Hunter is dismayed that the former duo are not getting along, especially when Slate challenges Igneous to a duel to prove their strength, only to discover that Grasshop is blackmailing Slate.
Lumen sends Corona and Hunter to search for the second Oracle Key in Araja Village, which happens to be where Corona was raised. Beerain follows them in hopes of snatching the key away and a battle between the Invectid and the Spider Riders ensues.
Stags has heard of Hunter's new power and wants to try and defeat it by challenging Hunter to a duel. However, Hunter finds that he cannot summon the Oracle's power at will until he is in true danger. The Spider Rider defeats Stags, who vows return someday to defeat Hunter.
With the Oracle Key in hand, Hunter and Shadow become more powerful warriors. However, they find that even with their newfound abilities, they still cannot free Aqune and Portia from Buguese's control.
Grasshop accidentally reveals Lord Mantid's plans to acquire the Oracle Keys and the Spider Riders must rush to the Oracle's shrine to recover the key before Buguese does.
When a village is disrupted by Invectids digging a tunnel to reach the Oracle's shrine, Hunter and Aqune are separated from their respective groups. While Hunter's friends look for him, Aqune takes care of Hunter until Buguese arrives.
Hunter is given a day to relax and decides that he wants sleep. Unfortunately, everyone else thinks he should be doing something else and won't leave him alone.
The Forest of Bewilderment holds a secret and Hunter falls into it, supposedly never to return. Here he finds a Spider Rider named Magma, who is searching for a purple Spider named Portia. Hunter manages to leave the forest with Magma's help while Magma vows to join the other Spider Riders once he finds Portia.
Lazy Prince Lumen is asked to defend a village from the Invectids, but he makes a deal instead. At first the Invectids promise that they will settle in their own village and never attack. The Invectids attack again, and Lumen fights back.
Buguese's loss to Hunter and Corona amuses Grasshop, who decides to prove his superiority by defeating the Spider Riders. However, Sparkle's creativity leads to Hunter's success in defeating the Invectids.
The Hill of Champions holds a monument where the Spirit Oracle first enshrined the first King Arachna with a Manacle. Buguese, the leader of the Big Four destroys the monument, expecting to find something. Hunter and Corona defeat Buguese's monster, but Buguese escapes with the timely intervention of a mysterious girl.
The Village of Fragrant Blooms is being attacked, and the Big Four Mistress Beerain is behind it. Disguised as a young girl "Raine", Beerain tricks Igneous and Corona into smelling the Blossom of Darkness, which Hunter ultimately destroys, reversing the effect.
Hunter and Corona arrive at Arachna Castle, and Hunter meets Igneous and Prince Lumen. Hunter must prove that he is a Spider Rider in a duel against Igneous.
In this Earth, there exists unknown underground world, the Inner World. In the world, there are braves who fight with large spiders, and they are called “Spider Riders”. According to his grandfather’s diary, a boy, Hunter Steel is traveling around. Meanwhile he happens to enter the Inner World from a pyramid. There, the war between the insect squad that aims at conquest of the Inner World and Spider Riders continues. Oracle, the fairly of the Inner World, summons Hunter because he thinks Hunter will be the messiah of the world. However, the powers of Oracle are sealed by Mantid who is the rule of the Insecter. For the peace of the Inner World, he has to find four sealed keys of Oracle to retrieve Oracle’s power. Hunter asks Spider Shadow, which is a big spider chosen by Oracle, to become a member of Spider Riders to fight against enemies.