Episode 1
The new Space Shuttle program captivates America and draws a diverse, determined crop of astronauts. But safety issues arise out of public view.
Episode 2
To revive public interest, NASA chooses teacher Christa McAuliffe to be the first civilian on the Shuttle. Issues with the solid rocket boosters linger.
Episode 3
After several delays, the crew prepares for launch as engineers and NASA officials tensely discuss concerns about the O-rings and a cold weather launch.
Episode 4
Challenger's shocking explosion devastates the families of the crew as well as millions watching live, and an investigation puts NASA on the defensive.
