Actor Song Il Kook took his three sons to a grape vineyard during the recording for the upcoming installment in preparation for his wife's birthday. Like a thoughtful husband, the actor had planned out his gift to his wife and that was to present her with grape juice he and his triplets make themselves!

Although he might have thought it was a great idea at first, as soon as they reached the vineyard, his sons all ran off in separate directions. The triplets were also more interested in eating the grapes than picking them, always proving to be a handful for their patient father.

Check out their grape picking adventure this Sunday at 4:50pm KST!