In north London, parents Michelle and Paul Doherty have their hands full with four-year-old son Ethan, who is autistic. Dr Ben Robins delivers Kaspar, a robot specially designed to help young children on the autistic spectrum learn communication and interaction skills. For the next six weeks, Kaspar becomes part of the family with his own bedroom and place at the table, but will Ethan accept him and agree to interact? In Edinburgh, Shopbot is delivered to the Margiotta food store. One of the last small food businesses in town, the Margiotta's have spent decades building a customer base who value the friendly human interaction they offer. But the new generation of the family who run the business want to look to the future, and they invite a robot worker to try and compete. In Suffolk, Neil and Linda Bowles continue to accommodate the CareBot, an assistance robot that can issue medication reminders and even call an ambulance. After two weeks together, CareBot's personality is helping forge a trust from its new family, but when it's left in charge of the patient for an hour, everything goes wrong.