The Doctor and his companion Martha are searching for a way to help people make their dreams come true. If they can find a set of data chips and unlock the spacecraft Infinite, anything's possible. But a space pirate has his eye on the Infinite, too.

• 46 min
• Directed by

  Gary Russell
• Written by Alan Barnes

• Expires in 3 days on BBC iPlayer UK
• Starring

  David Tennant

  ,

  Freema Agyeman

  ,

  Anthony Head

  ,

  Toby Longworth

  ,

  Liza Tarbuck

  ,

  Tom Farrelly