After going through a tough battle, Minho and his friends settle down for a nice vacation on Earth. There's a lot to learn, when it's your first trip to this planet, and even Minho is in for a surprise, when he finds that the Earth he left behind is nowhere near what he had been expecting. 

While on a Summer retreat, Yangyang notices that one person will not go to the lake at night or when it's raining. In fact, Hendery has spent the entire morning in his tent. Saving Hendery from his phobia could work to his advantage, and Yangyang is determined to make that happen.