Training heats up for the latest class of Tulsa Fire Department cadets.
The firefighters-in-training have been working in live fire exercises this week at the department's west Tulsa facility.
Cadets got a first hand look at what's know as a flash-over. It's a dangerous event inside a working fire that can lead to an explosion and injuries.
Channel 8 photojournalist Greg Bonds went inside the bunker with cadets to see the phenomenon first hand.
If the current cadets complete their training, 29 of them will graduate and join the department on March 1st.