how to import lightwave scene (.lwo) to 3D max??

[Mizu]

is there some kind of plugin?

[Fredddy]

I don't think there is a way to import directly.
There used to be a plugin up to max 4 I believe.
If you have lightwave you can export from the modeller in .obj
If not, you'll need to use something like polytrans to convert from .lwo to .obj