The Ninja get a big surprise when they arrive at the Tournament of the Sources, while Kai and Bonzle contend with the Forbidden Five in the Nether-Space.

Arin runs into an old friend at the Tournament of the Sources, the Ninja explore the City of Temples, and Lloyd sees a strangely familiar face.

Master Wu sets out to discipline the Ninja — through dance! Arin reunites with Frak, who Sora doesn’t trust, and the fighting gets underway.

Nerves fray and tempers flare as the Ninja prepare to compete. Wyldfyre squares off against Cinder, leading to a serious setback for the gang.

As the Ninja fight to win the Temple Race, Ras makes a shocking claim to Arin — putting him at odds with his friends — just as the tournament heats up.

Kai makes a discovery that allows him to speak with his sister. Arin visits the Temple City museum where he has a breakthrough about the missing horns.

Wyldfyre teams up with Arin to find out if Roby is behind the stolen horns. Later, at Bleckt’s office, they make a startling discovery.

Master Wu confirms Arin’s worst fears, and the location of the horns comes to light. Later, Wyldfyre drops a truth bomb at the tournament.

The Wolf Mask army battles the Elemental Masters as the Ninja converge on the Monastery of Gates to stop Nokt from freeing the Forbidden Five.

The reunited Ninja learn of the Forbidden Five's dangerous quest to find the Prismatic Blades. Meanwhile, Ras leads Arin across a desert.

Heavily outnumbered, the Ninja race to stop the Forbidden Five from freeing Thunderfang. Wyldfyre desperately tries to cure one of the crew.

Lloyd attracts the attention of a powerful adversary. The intervention of the mysterious mercenary tips the balance in an epic battle.

The Ninja escape Lee and head for the source of the threat, while Ras plans his next move.

In the City of Temples, the Ninja find guidance from an unlikely source, while Cole, Kai and Frak battle the Hollow Ones in Imperium.