Thor/Hyperion didn't happen after Doom's fight. When Doom arrives, Thorr's hammer is there. That means Thor/Hyperion's battle already happened. It may even be in progress when Doom arrives, though probably not because that's too unintentionally hilarious for this kind of story -- Doom sends his doomsday device in, only to see Thor and Hyperion accidentally blow the crap out of it... "No. NO!"
So you have Doom/Molecule Man/Strange, the Beyonders, Thorr's hammer, that weird Beyonder Tree and possibly Hyperion/Thor, all in the vicinity. Unclear what caused the plan to bad, and unclear what happened to all of the above after the event... on to issue #2.