An escaped convict stumbles across the Spindrift and, as Steve, Mark and Alexander look on, the giant takes the ship and the remaining Earthlings with him. Steve, Mark and Alexander try to follow, but can't keep up. When the convict takes refuge at a farmhouse, Mark converts the astrogator into a tracking device and the chase continues. The convict is forced to leave the farmhouse, still carrying the Spindrift, and stumbles into quicksand.