The Incredible Hulk #117

The Leader pushes the button, firing a missile at Russia as he tries to touch off World War III. The Hulk has to battle the Super Humanoid in time to get back and stop the missile from striking its target but he takes too long beating the indestructible plastic monster. Willing himself to turn back into Banner, the brilliant scientist uses an experimental hunter missile to knock down the first one. So the Leader pushes the button again and this time it is the Hulk who comes to the rescue.