Children are always warned to steer clear of strangers - but what happens when you need to seek help from one? Libby is shopping with her mum in the town centre one day when they happen to meet Mrs Cook and her son Connor. Connor and Libby immediately start running around, letting go of their mums’ hands and getting into every corner of the high street. When they’re lost in the crowd, both of them are very upset and worried. But Libby suddenly remembers what the police officer said when they visited her school and remembers the word UNIFORM. This is the word to help identify who a person is and if they are safe. Using this as their starting point, the two children must find a safe stranger to help them find their way back to their worried mums!