Dahlia Malloy has just been released from prison and her family travels in their RV to pick her up. They take her back to see her extended family, where we learn that the Malloys come from a clan of what are known as Travellers: con artists who live off the grid and make their money through various scams. Dahlia's husband Wayne gets into an altercation with another prominent man in the crew over the supposed arranged marriage of their daughter, Di Di. That night, the Malloys take the clan's stash of money and take off, but they become accidentally involved in the death of another couple in a car. Finding that the couple, the Riches, were quite wealthy, and were on the way to a new house in a new neighborhood where nobody knew them, the Malloys go to the house and find that they could have found their biggest and most dangerous con pretending to be the Riches.