Tasked with extracting a family who is at the mercy of a Georgian gangster, Tyler Rake infiltrates one of the world's deadliest prisons in order to save them. But when the extraction gets hot, and the gangster dies in the heat of battle, his equally ruthless brother tracks down Rake and his team to Sydney, in order to get revenge.

Four friends travel to a lakeside cabin for a carefree weekend, but the fun turns into a nightmare when 3 of them end up locked in a hot sauna. Every minute counts and every degree matters as they fight for their lives in the heat up to 247°F.