Tonton Streaming Voltron: Defender of the Universe (1984) S1E32 - A Transplant for Blue Lion

After a serious defeat at the hands of Planet Doom, the Voltron Force desperately trains, hoping to find a new source of strength before Haggar's robot attacks again. With help from the ghost of King Alfor, Keith and the others reach a new level of control over Voltron and unlock a new weapon!