The Incredible Hulk

A research scientist, still grieving the loss of his wife, seeks to unlock human potential by studying people who exhibit incredible strength under stress. He discovers a link between gamma radiation spikes and these episodes, and decides to test the theory on himself. However, the machine's modification gives him a much higher dose than expected. When he becomes angry and frustrated while changing a tire in the rain, he transforms into the massive, green-skinned Hulk.