A scrawny 14-year old errand boy called Gertie (real name Gerald, but who wants to be called 'Gerry' at the start of the Second World War!), is spurred into action. For a lanky lad with borrowed specs, smelly feet, awkward elbows and big ears, who liked to keep things simple, perhaps Gertie wasn't the most obvious choice as a go-between. But when it came to bringing 'useful errands' to solve unexpected problems, Gertie is brilliant.