Really this film feels more like it is about Wolverine as he is sent to stop the Hulk who is supposedly rampaging across Canada. Wolverine is an homage to the many great Hulk and Wolvie battles all the way back to Wolverine's first appearance in Incredible Hulk #181.
This is a great film visually and has a lot of great fights as Hulk smashes his way through Asgard in a berserk rage and nearly destroys the entire realm overpowering even the mighty Thor. But when Loki loses control and the Hulk sets his sights on the palace where Odin lay sleeping both Thor and Loki must work together to keep the Hulk from destroying their realm. Thor Loki takes control of the jade giant and intends to use the Hulk's strength to defeat his brother Thor. This is a really fun DVD with a lot of nobs and tributes to the original comics throughout both films.