What it says on the tin.
Ultraman Belial comes to Movie Asgard with his Evil Cloak, Giant Evil Hand, and Giga Battle Nizer filled with 100 choice Kaiju. He also gets all his transformations and troops(Legionnoid and Darclops army)
Asgard gets Loki's forces from the Avengers movie as well.
Can Belial conquer Asgard, or does the most obnoxious trash-talker the Land of Light ever spawned get ceremonially thrown off the Bifrost?