This episode of the award-winning series reveals how five-year-olds learn to recognise and deal with risk. Talented maths fan Nathan can be easily scared and even finds playing 'goodies and baddies' traumatic. Can his fearless new friend Ralphy show him his brave side and how does Nathan react when he's given the opportunity to handle a tarantula? Daisy struggles when she meets some of the new arrivals at the nursery; can she take a risk on new friendships? And Jack and Miylah take a shine to each other in the playground, but what will the other children make of their romance?