作品以最强非洲浪人武士「弥助 Yasuke」为主角，他在16世纪的战国日本为封建领主卖命，并被人称为「黑武士」。已经隐居的他为了守护拥有谜之力量的少女，下定决心再次拔刀对抗袭来的黑暗势力。

Season two picks up with the fate of Monarch — and the world — hanging in the balance. Buried secrets are revealed that reunite our heroes (and villains) on Kong's Skull Island, and a new, mysterious village where a mythical Titan rises from the sea. The ripple effects of the past make waves in the present day, blurring the bonds between family, friend and foe — all with the threat of a Titan event on the horizon.