Synopsis
Thor engages in a solo fight against the Hulk. After a long exchange, he goes to the extreme of summoning a lightning bolt to take out the gamma-powered creature. This lasts a few seconds before the Hulk recovers and starts again. Their fight continues through the entire complex.
Unfortunately the two brawlers damage the containment field for the gamma reactor that is powering the facility. Unless it is repaired, the entire Eastern seaboard of the United States will become irradiated.
Ultimately Thor's best efforts can't stop the Hulk as he is battered unconscious.