Ivar is told the story of how Angus and Rohan became friends as children as well as how Torc joined with Maeve.

Ivar finally manages to steal back his people's chalice from Torc. However, the chalice is Mider's link to the dark realms and taking it back to Ivar's kingdom is too dangerous. Ivar decides to take the chalice anyway but is captured by Maeve while Mider is left stranded at Castle Kells.

After saving a wood elf, Angus is offered one wish and the other Knights pressure him to use it for their own desires.

Maeve resurrects the legendary warrior Balin and sets him against Kells, forcing Rohan to battle his idol.

A young prince who seeks to have his kingdom ally with Temra comes to claim it and the Knights must keep him safe, despite his bratty attitude.

Maeve awakens an ancient warrior who uses a scepter to take over the minds of Kells soldiers and the Knights.

Mider tricks the Knights into giving up their weapons as he takes over Tir Na Nog.

In order to stop a storm of dark magic, the kings of Kells and Tir Na Nog must switch places for a day. While Conchobar organizes the fairies into a fighting force, Fin Varra's more fun ways with the Kells soldiers leave them vulnerable to attack.

Jealousy of Rohan's prominence leads Angus to a falling out with his friend.

Contemplating leaving Kells, Rohan decides to stay and fight as Garrett returns to aid in the battle.

Maeve uses a spell on Garrett to turn him into her fighter. He soon manages to defeat the Knights and steal their weapons.

Captured by Maeve, Rohan is shocked to learn the secret of his origins.

Aideen accepts a spell from Maeve that turns her into a human so she can pursue Rohan. Maeve uses the opportunity to capture Deirdre, forcing Aideen to choose the princess or her new form.

Ivar battles the Sea Serpent of Temra for his armor and his feelings about being in Kells. Meanwhile, the others protect a village from a Cyclops.

The Knights must find the kidnapped Fin Varra before Maeve steals his powers.

Maeve casts a spell on Rohan that makes him doubt in his abilities and weakens him in battle.

As the war turns against her, Maeve pulls out her secret weapon that was bred by her teacher Nemain: Lugad, a monstrous warrior.

Rohan must try to convince Lugad of the truth about them.

Deirde faces the Lightning Bat of Temra for her suit of armor. Meanwhile, Maeve tricks Rohan into thinking that Temra wants peace with Kells so that she can sic the Tash Hound of Temra on him.

Maeve has her soldiers kidnap Angus to keep him from facing the Rock Wolf of Temra. When his friends rescue him, Angus confronts the Rock Wolf while the others fight the Bull of Temra.

The Knights must free Pyre in order to defeat Tyrune.

On an errand for Cathbad, Deirde drinks from a magic pool that turns her into a hag. When she goes to Fin Varra for help, he's taken by her new appearance and shrinks her down to be with him.

Told that Garrett is important to the future of Kells, the Knights manage to free him from his spell.

Rohan and Deirdre work to clear Angus when he's accused of robbing villagers and vandalizing their properties. While Ivar is busy looking for the real culprit, Maeve summons a fire monster and sends it to Kells.

Entering Tir Na Nog, Torc steals a powerful weapon that allows him to challenge the Knights.