It's Jack Hoffman's birthday, but if the team want to reach their season goal, there's no time for cake. Todd and his crew must solve why the Big Trommel, aka Hot Mess, is leaking out more than half the gold in the pay dirt.

When Alaskan temperatures plunge, Todd and the team are caught by surprise. Their biggest wash plant is frozen and the Hoffman's rush to thaw out their other plants before they're iced out for the season.