What episode on season 1 of angel is rated 18 it usually 15 so just curious?

There doesn't seem to be any episode of Angel season 1 rated 18. The entire series is rated TV-14, which means it is generally appropriate for viewers aged 14 and older.

It's possible you're thinking of a different show or a different season.

Could you please clarify what you're looking for? Maybe you remember a specific scene that you found particularly intense or violent?

Let me know and I'll do my best to help!