Trouble at the Top

Seeing is believing (1x6)

:

Derek Jones has an ambition: to turn the ailing spectacle company Swan Optical into a multi-million pound sunglasses empire. When he wins a crucial order for several thousand pairs from a department store, the future looks rose-tinted and he is determined to meet it. But as the company team work on the order, they start to wonder if they have overstretched themselves