There's really not much to it. A season logline describes the main arc within your season and a series logline describes what the series is about. Simple as that. The structure is the same, the main character(s) is the same, the only difference is that each focuses on a different timeline.
That said, with your season logline you describe the season as if it were a whole series on its own. Or a movie. If it's a serialized, it should be easier. If it's a procedural, focus on your main character's personal arc THAT SEASON, in a way that also describes what's going on around them THAT SEASON. Structure wise, use smooth transition words between the two parts of your logline, such as "while," "meanwhile," "until," "but/however, etc."
Think arc arc arc, Kris. That's the key.
I haven't listened or done the assignments on TV, because I'm doing feature, but I imagine you got confused thinking the loglines sound the same because the first season is what kicks off the series. In a serialized show (Like Breaking Bad. Was it one of the examples given to you, by any chance?), it sounds very similar, yes. But if you notice, in other seasons Walt isn't diagnosed with terminal cancer, he isn't expecting a daughter, his wife isn't a kleptomaniac, he doesn't even partner up with a former student to sell drugs (the fall out thingy). These are all part of season 1. On the other hand, expecting a daughter, for example, isn't part of the series premise while partnering up with a former student to sell drugs is.
So you need to ask yourself which parts of your story are season related and which are series related. Break it down. Some parts CAN be both, like in the BB's example. It all depends on your franchise.
265 week(s) ago