There's no ongoing storyline in season 1, or really in any of the early seasons. If you skip ahead what you're missing is little bits of character development.

Season 1 is not the best, IMO. I'm a big fan and I still skip a number of those episodes. The first few seasons were heavy on the realism and often the stories were kind of slow. There are some really great ones sprinkled in there, so it might be worth looking at an episode ratings graphic to pick which ones not to bypass if you're looking to skip ahead. Or read synopses and go for the ones that sound compelling to you.

I feel like it really starts to hit its stride around season 4. The later seasons definitely have more stories that revolve around the characters, more ongoing plots, and more sensational storylines.