His POV: looking down from where he came we see the far wall losing a few bricks which crash tothe ground. We hear the roar again.

As we watch, part of the wall collapses, leaving a large hole. The MONSTER pokes both heads through and roars again.

The OBJECTS (moving twice as fast as before) try to get through the gap between the gates, which opens partly to let them through. LARRY guns his engine, which starts. Then, constantly looking back quickly all the time he finds himself blocked by the OBJECTS.