This was supposed to be their biggest hunt yet. Sam and Dean had set off with a group of 5 others. The boat had returned to the dock that day with five passengers.

Dean had decided to listen to Sam and follow him to some sort of ancient Japanese statues, which didn't have anything to do with the hunt. They were here to look for demons or something. Not angry spirits.

Though, the boat had left without them, and they hadn't realised until it was too late. Meaning, the brothers were stuck on the island.

"Day four" Dean wrote in his notebook. "I'm hungry as shit and don't really like the sound of eating rats."

Sam was off exploring, leaving Dean by the campfire. It was then he saw a new boat arriving in the distance.