The award-winning documentary moves on to a new, older group as the nursery opens its doors to an international class of children from across Britain and around the world. Harlo has travelled from Los Angeles but what do the others make of his American ways - in particular his love of guns? Reilly, whose mother is from South America, quickly develops a crush on Harlo. But will her feelings be reciprocated? Meanwhile, Syrian refugee Omar has a tough time making friends in the playground, and soon the others gang up on him.