So, what do those script synopses incorporate? Why spend the space? Loglines and synopses differ considerably in both format and purpose. This can happen in context of: Sending your script to an actor to see if they want to be in it. After all, an audience most likely will not have your synopsis on hand!
Not too much, and not too little as well. Keep an eye open for opportunities throughout your logline to add that extra dash of color! Although some extended treatments do include dialogue sequences to better illustrate the content of key scenes. Writing a synopsis shouldn't be like writing a pitch deck or a creative brief.
Make your characters the focus of your story and take time to describe their motivations and emotional responses to incidents. Include Your Major Set-Pieces.
On your first day as an intern, you might be asked to write four or five of them. When you're submitting episodes to be approved by the network, you'll provide a treatment.