The impact came from inside his trailer. A heavy crack followed the groan of shifting weight. The truck lurched but stayed upright. Dan pulled over, breathing hard, knuckles white on the wheel. Somewhere behind him, something splintered. One of the crates had definitely broken loose. He groaned, hoping nothing was broken.
He stepped out into the storm, boots sinking in muddy water as he rounded the trailer. The rain fell so hard it bounced off the metal sides like nails. One of the straps had torn clean through. He grabbed a new one from the toolbox and started re-securing the load.