M*A*S*H didn't find all it's audience the first season (as many great shows don't). But in re-runs in the summer, they found more lovers. In order to re-cap and catch-up, move forward the characters, and bring in viewers - Larry Gelbart wrote S2 E1. It does an incredible job of entertaining while summing up the characters. I've seen every episode of M*A*S*H many times and if I were to recommend a 1st episode to someone it would be this. By the end you'll be hooked. Then go back to the beginning and after you watch the first season you'll love watching this episode again and enjoy as much, if not more, than you did the first time.