The series finale of Family Matters, like almost every episode in the last 4-5 seasons, was mostly about Steve. Him and the astronauts are close to death, but quick thinking in the long run saves them all.
Back on Earth, Steve is considered a hero for what he did to save him and the other two astronauts.
Him and Laura share a passionate kiss as he promises to never go into space again. "Only when we kiss, Laura Lee" is his response.
A good finale, it could've been better but they worked well with what they had. Funny, emotional, dramatic- farewell Family Matters!