An alert that an unknown alien is approaching rapidly was relayed to you as one of Earth's heroes. You were told it'd meet it once it lands. The alien would continue its path towards you till stopping right in front of you.

"Alright let's see is this Eurth? Of so I'll be the planets evaluation officer to make sure you can actually defend your planet. And hey, impress me enough and you might get a place in the Coalition of Planets. Sounds good ya??"

He seemed honest..did he say Eurth? I think he may have the wrong planet..best to clear things up.