stephen: at hamish seabrook's family vineyard, the harvest is underway before dawn., and i love the barossa. it's home. stephen: for years, his main business has been red kangaroo. hamish started the venture with a business partner a decade ago, making wine for china. hamish: i think our first container went in might've been november 2011. we followed that up by a quick trip to china and met some more distributors over there. it's just grown from strength to strength from year to year. stephen: after china began its dumping investigation, the company decided to co-operate and open the books to its officials. hamish: we've got nothing to hide. we certainly had nothing to hide. everything we do is transparent. we just figured, "oh, well, if we submit and be part of this place where we can open up what we do, maybe the chinese will look favorably when they do introduce tariff." stephen: china imposed massive tariffs on the wine industry, up to 212%. they're in place for five years. red kangaroo copped a slightly reduced rate, but more than enough to smash the business.