10 Worst Things That Ever Happened To Hulk
2. Losing His Wife And Children - Planet Hulk
One of the most interesting things Planet Hulk added to the Hulk mythos was Caiera, one of The Red King's most powerful warriors, who turned on the tyrant when she learned the truth behind his manipulations and when his attempts to destroy The Hulk grew too brutal.
After Hulk became the new ruler - The Green King as it were - he took a liking to and proceeded to court Caiera, which she eagerly reciprocated. She even expressed love for Bruce when Hulk turned back into him as a sign of trust towards his wife.
Hulk's life was looking pretty good... until one of his Warbound sabotaged the engine of the ship that brought Hulk here, causing the highly volatile fuel cells inside to explode with enough force to level the entire capitol city, killing thousands as a result - including Caiera and seemingly The Hulk's two unborn children with her.
Sure, we learn at the end of World War Hulk that his children actually survived in the womb of their mother and were later birthed from the rubble of Sakaar, but that's a whole other story.