As preparations are made to celebrate the store's 20th anniversary, Harry works tirelessly to break the suppliers' embargo on Whiteley's, while Mae manages in avoiding him. A stoic Mardle struggles to cope, and Meryl steps in to provide some much-needed help. Jimmy's accountant reveals a massive problem, which leads to a very risky and secret plan, while journalist Joe Tooby continues to investigate him - with shocking results.

• Andrew Davies

• Amanda Abbington
• Jeremy Piven
• Trystan Gravelle