The reselling of retail returns has become a multi-million-pound business, with a growing community of entrepreneurial re-sellers buying up unchecked bulk selections of returned consumer items, most previously bought online. The right goods can turn over a tidy profit for a lucky seller.

In Bidding Wars, we follow a returning cast of re-sellers from across Britain as they try to generate a profit from their blind purchases through online second-hand sites, car boot sales and specialist dealers.