Dragon Ball Super

Zamasu's Ambition – The Storied "Project 0 Mortals" of Terror (4x15)

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Zamasu and Black explain how they both came to be in the future and why Zamasu is not dead. Goku, Vegeta, and Trunks struggle against the immortal duo. The Zero Mortals Plan is at last explained, and the person they blame that caused them to start all this is....Trunks?