A method and apparatus for restraining cargo in a trailer is provided. The apparatus has four components: a mobile cargo stop, a chain, means for anchoring the chain to the trailer floor near the trailer front wall, and a front wall liner mounted to the trailer front wall. The chain runs from the anchoring means near the trailer front wall, under the cargo, and is affixed to the cargo stop with a turnbuckle hook. The cargo is restrained between the front wall liner and the cargo stop by tightening the chain using a cinching device mounted on the cargo stop.