The friends wander into a spooky ghost town, but they soon realize they're not alone. Can they trust their new acquaintances?

Separated from Kai and the others, Mira and Adam must solve an old man's riddle. Adam thinks he's spotted a clue about where they are.

After battling an ice monster, Adam, Kai and Mira weigh whether to help the other kids, then find themselves stranded at sea.