Dialogue... Engineer: Alright! We have a little problem... We just hit the ground hard! Dispatcher: Where? Engineer: In the street "Up-switch" (pause) We hit it hard! I've been looking at the video and there appears to be a small red flag/target near ground level that may indicate a yard limit derail. Or they may have hit a turnout that was not aligned for their route. The loco jumps up and over to the side like it hit a derail.