With unique access to Australia's emergency services, first responders and local communities, Craig Reucassel joins fire chiefs and emergency commissioners as they plan for an ominous summer ahead.

Australia experiences the largest peacetime evacuation in its history. Craig learns what's required to become a volunteer firefighter as he undertakes training before heading to the fire front.

After three years of brutal drought and the hottest summer on record, Craig finds himself facing floodwaters as two months of rain falls in just two days in Sydney, the heaviest rainfall experienced in 20 years.