Ep 9. Shockwave #9

A racer is trapped inside his burning car when he crashes and flips his midget car several times. Then, San Fransisco's hills sees an 8,000 square foot mansion sucked inside a sinkhole. An ejection seat fails when a flight instructor tries to teach a trainee how to recover from a violent spin. Plus, a 200 mph crash of a speedboat, a pregnant skydiver crashes in a parking lot, and a helicopter rescue team crashes, trapping it's six members underneath the wreckage.