Dragon Ball Super: Season 4, Episode 13

4 - 13: Protect the Kaioshin Gowasu Destroy Zamasu!

Whis gifts Gowasu with rice cakes and green tea, apologizing for his group disturbing him and Zamasu as they leave. But Beerus and Whis sensed Zamasu's murderous intention with the group remaining in space to observe him and Gowasu. When Zamasu does murder his master, Whis reverses time to avert the Supreme Kai's death. Furious that his plan was foiled, Zamasu decides to attack Goku before Beerus intervenes and atomizes the Kai. Back on Earth, after being convinced by his younger self to stop feeling bad about himself, Future Trunks learns that the present day Zamasu was destroyed with Beerus assuring him that all future versions of the Kai would also cease to exist regardless of alternate timelines. But in the future, Zamasu and Goku Black are discussing their Project 0 Mortals plan and the irony that it was only possible because of a mortal's power.