Cal Fire

The first major fire of the year erupts in Southern California, and engineer Dudley risks missing his daughters birthday; in Redding, Station 43 gets a call to put down a fast-moving blaze in an area filled with dangerous power lines.

The Creek Fire, set to become the most destructive fire in California history, ignites in the Sierras and forces the rescue of campers trapped by flames. Chief Walker and crews battle the Valley fire that threatens hundreds of homes.

In a major escalation of fire season, multiple blazes tear through Napa.