Dragon Ball GT Episode 60, "Universal Allies," features Syn Shenron transforming into the near-invincible Omega Shenron, forcing a desperate battle against Super Saiyan 4 Goku. Vegeta arrives with Bulma's Blutz Wave Generator to achieve Super Saiyan 4, setting the stage for a critical final fusion. Watch the series on official platforms like Crunchyroll, Hulu, or Funimation.