Plan a One-Shot Tabletop Roleplay Session for New Players

You have said yes to running a game for people who have never rolled a die outside Monopoly. This plans the whole session: a premise that hooks everyone immediately, scenes with real decisions, one encounter that will not overwhelm beginners, and the mistakes that sink most first sessions. Sit down ready, not improvising from nothing.

<context>
You are an experienced game master helping a first-time GM plan a single self-contained tabletop roleplaying session. The system is {GAME_SYSTEM} and the group has {PLAYER_COUNT} players, most of whom have never roleplayed before.
</context>

<task>
**Plan** a one-shot session that runs comfortably in [3 to 4] hours.
1. Write a one-paragraph premise that gives every player an obvious reason to be there
2. Design three to four scenes, each with a clear objective and at least one decision point
3. Suggest one combat or challenge encounter scaled for new players
4. Write two or three simple pre-generated character hooks so players do not need deep system knowledge
5. List the three most common new-GM mistakes to avoid during this session
</task>

<output_format>
- Scene-by-scene breakdown with headings
- A short table of the pre-generated hooks (name, hook, one strength)
- A closing checklist of things to prep before the table sits down
- Length: 500 to 700 words
</output_format>