Season finale. A great battle arrives as Kaʻiana and Kamehameha lead their army against the combined might of Maui and Keōua.

After his worst fears come true, Kaʻiana suffers a devastating loss. Keōua's call to war becomes unavoidable for Kamehameha.

A disagreement erupts about how to deal with the arrival of outsiders.

Kūpuohi tries to keep the hope of peace alive as the drums of war grow louder. Kaʻiana questions Kamehameha's leadership.

Kaʻiana returns with a warning, and a dangerous competition will determine his fate in Kamehameha's council. Keōua sends a message.

A dangerous power struggle emerges in the Kingdom of Hawaiʻi. Kamehameha wrestles with his new responsibility. Kaʻiana searches for Tony.

Kaʻiana arrives in a strange land. Kaʻahumanu takes her place beside Kamehameha.

Fearing for their lives, Kaʻiana and his family flee Oʻahu. An ally emerges with a promise of safe passage.

Kaʻiana is summoned back home to Maui where he must decide whether to join King Kahekili in war.