This collection [World War Hulk (2007) #1-5] picks up where “The Incredible Hulk: Planet Hulk” left off. “Planet Hulk” sees Hulk arriving on the harsh planet of Sakaar where he engages in a series of adventures that take him from enslaved gladiator to king. I reviewed that work recently, and enjoyed it more than this one, though both are from the same author and each tells an intriguing story. The “Planet Hulk” story was just more intricate and thought-provoking — we see a change in the Hulk and the events that bring those changes about.
In “World War Hulk,” the Hulk returns to Earth, seeking revenge upon the “Illuminati” group who jettisoned him into space (i.e. Tony Stark / Ironman, Doctor Strange, Reed Richards / Mr. Fantastic, and Black Bolt.) Said revenge isn’t so much for shooting him into space, but because the craft that they sent him to space in blew up leveling Sakaar’s capital city and killing (among many others) his brand new Queen. So, the story is just the Hulk trying to put a beating on the four superheroes who shot him into space as they try to not get beaten (and to keep a [mostly] evacuated New York City from being leveled.] The Illuminati quartet face a number of problems, however. First, while they might have had the combined ability to defeat the Hulk before (at least teamed with the many other heroes at their disposal — and many are present from street-level vigilantes to big leaguers like the Fantastic Four,) the Hulk is madder than ever, and thus stronger than ever (but also wiser / more experienced.) Second, the Hulk now has his own monster-level “Warbound” entourage (i.e. Korg, Miek, Hiroim, Brood, and Elloe Kaifi.) Finally, the one hero who, without a question, has the power to stop Hulk and his Warbound, i.e. The Sentry, is severely agoraphobic and schizophrenic. So, it’s a great challenge to get him out the door and once you do, he’s at risk of schizoid behavior. On top of all that, he contains enough power to destroy the world – accidentally or because of distorted perceptions.
I did like the touch about The Sentry being a basket case. I’m not a big fan of hugely overpowered heroes, but if they have enough weaknesses they can redeem what would otherwise be terminally boring storylines. This is certainly the case with the Hulk who is at his most powerful when he is out of control and who is also, generally, at his least intelligent at those times. The Sentry takes it a step beyond because he’s barely functional. One may be doubtful about someone so powerful being scared to go outside, but it is the nature of mental illness that one doesn’t always see oneself as one is seen and there need not be a sound logic to one’s perceptions of the world.
I’d recommend reading “Planet Hulk” first and – if you enjoy it, which I suspect you might – you’ll probably find following it up with “World War Hulk” worthwhile.