S2·E2 Frostini's Meltdown

On the hottest day of the year, when the trainees are going to help Frostini deliver ice cream, there??s a power failure and it looks like all the ice cream will melt! Speedy has an idea: he and Frostini will go to the ice caves in the mountains and bring back ice to keep things cold. Meanwhile, the trainees must look after the refrigerator cars.