Dragon Ball Super (2015)

S01E66 Showdown! The Miraculous Power of Unyielding Warriors

Following Goku's strike that disrupts Zamazu's equilibrium and exposes a vulnerability, he and Vegeta decide to fuse, sensing a chance for victory. However, for Trunks, the fate of the world rests on his shoulders, and he understands that the outcome ultimately hinges on him.