Ireland's answer to Louis Theroux finishes up his tour of America tonight, as Kevin McGahern takes a look at the intimacy of the digital age and whether people really can choose their family. In South Carolina, Kevin rides with an anti-fascist motorcycle club called The Bastards. Their motto: “Who needs a father when you’ve got a brother?”. In San Francisco, Kevin meets Jeremy, the 23-year-old ‘Jewish House Mom’ of Crypto Castle, a house of Bitcoin tech entrepreneurs who work hard and play hard in an arrangement that blurs the lines between family, friends and colleagues. Later, in Florida, Kevin visits ‘The Sausage Castle’, where a travelling band of misfits has found family in a house full of guns and glory holes.