Dragon Ball Super Episode 49

Goku manages to fight off Future Trunks. Bulma manages to calm down Future Trunks. Future Trunks gets clued in as to where he had ended up. He is also introduced to Beerus and Whis. Future Trunks apologizes to Goku for attacking him. He tells him he looks just like an enemy he was after. Both Goku and Vegeta are intrigued by this enemy. They decide to help him. Meanwhile in an alternate timeline, Goku Black is searching for Future Trunks. Realizing Future Trunks escaped using a time-traveling machine, Goku Black decides to go after him. Goku and Future Trunks decide to have a quick fight to determine each other’s power. Goku easily defeats Future Trunks, but Future Trunks warns Goku that Goku Black is a lot more powerful. While Goku and Future Trunks practice, a portal opens above them. Goku Black comes out of the portal and introduces himself.