Yang is annoyed that Yin makes him do all the stuff she wants to do and wishes that he had a sibling to do boy stuff with, hearing this Zarnot creates a robot named Chip who becomes Yang's sibling after he saves Chip from bullies. Chip and Yang begin to do boy stuff together which annoys Yin and makes her suspicious of Chip. Later in the night Chip gets a message from Zarnot to lure Yang away from the dojo. However, Chip cant do it and goes to tell Zarnot the plan is off when he is caught by Yin. Yin is about to attack when Yang walks in, Yin tells Yang that Chip needs to be destroyed but Yang refuses enraging Yin who runs off to get Master Yo, not wanting to be lectured, Yang sneaks off with Chip. Chip and Yang go to Death Valley where Zarnot is waiting for them and takes control over Chip who easily beats Yang and pins him down. Yang manages release Zarnot's control over Chip but while he is thanking Yang a wrecking ball knocks him into a petting zoo. Yang finds him being eaten by sheep and he gets short circuited but not before telling Yang he was the best brother ever. Yin arrives as Yang cries over Chip upset that he doesn't have a sibling to do boy stuff with, but Yin tells him that he did all the stuff she wanted to do and he never asked her to do any boy stuff with her. When Yin says that she will do all the boy stuff Chip turns back on but an excited Yang kicks him away.
The episode ends with Yin and Yang doing boy stuff while Chip gets eaten by a sheep
- This episode features Zarnot as the main antagonist