It Came from Outer Space II (1996)

The photographer Jack Putnam returns to his hometown in the desert, where he meets old friends. The boy Stevie Fields, who is raised by his mother Ellen Fields alone and with no friends, tries to draw Jack's attention and invites him to go to a hill in the desert to take pictures. They go together and Jack lends a camera to Stevie. Out of the blue, they see something falling from the sky with a storm. Out of the blue, the water disappears, there is a power-cut and the temperature becomes unbearably high. Soon people realize that they are trapped inside the town. When some residents change their behaviors and Stevie is missing, Jack drives to the hill and sees a rock growing bigger and bigger and finds that there are aliens in town.