What is the first episode of Happy Planet where Ding Kaile and Fat Brother go to grandma's house?

Plot:

Episode 12

The weekend is coming again. At Lele's repeated request, his mother promised to let him go to his grandmother's house to play, and he was accompanied by his brother King Kong. They packed everything and set off. Lele's father drove them there. When they arrived at grandma's house, grandma warmly entertained them and personally cooked some home-cooked dishes for them. At night, three children sleep in a big bed. While they were sleeping soundly, a baby's crying came from high to low. Lele opened her eyes and listened to them. It's true. Then push King Kong and Fat Brother. They didn't wake up. After breakfast, three children went out. When they came back for dinner at noon, grandma fainted on the spot and asked why. Grandma said that there were geomantic ghosts in this place, but the children didn't believe it, so they went to find the reason and found a microwave line and several groups of high-voltage lines not far from where they played. Finally, with the help of Lian Rongbao, they explained that the children's crying was caused by this microwave antenna, so Lele wrote a letter to the mayor to solve this problem.