Jeannie has been a happily married housewife for 15 years to her astronaut husband Tony Nelson and has a teenage son, T.J. When Tony is promoted to Colonel and is about to retire from the NASA space program, Jeannie decides to give him a celebration party in their backyard. However, egged on by his colleagues to retire with a dramatic flair, Tony breaks his promise to Jeannie for one more space flight (aboard the shuttle), this time with a female astronaut, Captain Nelly Hunt.