Summer temperatures at an all time high disrupt the seafloor, causing miners to find new strategies. Shawn fights a legal battle. Ken tries to keep his gold crown, while Emily and the Kellys look to expand their operations.

Shawn gets his first taste of the shifting seabed. Ken tries a new perspective to find new ground. Kris and Emily each try out greenhorn divers to boost their productivity, but the plan grinds to a halt for one of them.