Dragon Ball Super (2016), S01E045: Vegeta Disappears?! The Threat of Duplicated Vegeta!
Vegeta is powerless due to the purple viscous liquid cloning and absorbing his powers. Vegeta and the rest flee from the cloned Vegeta and the space bandits. Learning that the original will disappear once cloned, Goten and Trunks attempt to defeat the clone before that happens. Goku is fully recovered while training on King Kai's planet. He senses that Goten and Trunks are in danger and so teleports to Goten's side and prepares to fight the cloned Vegeta.