The crew are off course, 200,000 miles from home and without a guidance computer. Their lives now depend on their flying skills - and Jim Lovell’s wristwatch. #13MinutestotheMoon
For more Apollo films and photos: www.bbcworldservice.com/13minutes
Presented by Kevin Fong.
Written by Kevin Fong and Chris Browning
Theme music by Hans Zimmer and Christian Lundberg for Bleeding Fingers Music
BBC Radio Science Unit for the BBC World Service