words that would be forever linked to commander jim lovell. >> when the explosion occurred i thoughtt believe what was happening and then all of a sudden i said it is me. it is now. so what's next? >> the command module's normal supply of electricity, light, water, all lost. there was no heat source. they were 200,000 miles from earth and going in the wrong direction. >> did you actually ever think i might die? >> well we thought our chances were about 10%. >> did you really? >> oh, yeah. when we realized after we saw the oxygen escaping that things could be really bad. >> we have out into space. >> as the world watched ground control in houston faced a formidable task. think of a way to fix the spaceship and test and write out step by step procedures for thes a t-- the astronauts to follow just to get home. >> we had to do in the simulator what is they had to do in the damaged apollo xiii spacecraft to get them home. >> one was to use the lunar module, the craft used to shuttle to and from the moon as a sort of light bulb. >> we had the lunar module and it had power and batteries an