It took place during the first Thor movie, Loki was good in this story and was trying to show Odin that Thor wasn't ready to be king. I don't think he thought Thor would go so far and be banished.
I specifically remember Loki visiting Thor while he's being held by shield and explaining that even though he's king he can't leet Thor come back until he learns his lesson. Also, the warriors three don't trust Loki and think he wants to be king so, like in the movie, they go to find Thor. Thor tells them that Loki's doing the right thing, but I don't think they believed him.
I can't remember if they believed Thor or not.
I'm pretty sure Loki was using his position and how people thought of him to trick Laufey in to invading asgard so he could kill him and claim that he was preventing an invasion. Maybe to get revenge on his birth father or to protect asgard?
Hopefully someone knows what I'm talking about, because I loved this story and I just can't find it.