Dragon Ball GT (1996)

S1E33 The Tail's Tale

Earth's survival hangs in the balance as Uub realizes he cannot defeat Baby alone. In a critical moment, Buu intervenes, merging with Uub to create a formidable new entity that combines their strengths into a single, powerful force. At the same time, Goku prepares to tap into his long-lost abilities, setting the stage for a desperate bid to reclaim his former power!