Katy is given a hard time by the "peanut truck". Samuel takes care of a mass blast that has surprises in store for him.

Mathieu moves and operates the spectacular long reach excavator. Bertrand fills 14-meter-deep holes with explosives.

On a moonless, snowy night, Alexis and Anthyme repair several machines, and Katy drives for long hours.

Under heavy snow, Edith visits accident-prone sites. Katy mentors an apprentice who gets behind the wheel for the first time.

Alexis and Anthyme resolve several mechanical glitches. Mathieu secures the walls of the mine aboard a tractor and a long reach excavator.

Martin participates in ice rescue training. Samuel installs explosives along a threatening wall.

Guy Romain directs mining activities towards the purest iron concentrate possible. Katy drives one of the biggest trucks in the world.

Guillaume and his team move down giant pumps along a cliff. Martin responds to an alarm from the fire detection system.

Samuel is responsible for an old-fashioned explosion. Mathieu and Patrick secure walls in difficult conditions.

Keven and his team are servicing a huge cable excavator. Bertrand struggles with a metal rod stuck in a blasthole.