Milhouse first stands beside a large riveted grey vault-like door with a jagged hole in it, then walks past a grey panel with a power outlet…

What happens

Milhouse, the blue-haired boy with red-framed glasses in a pink shirt and red shorts, first stands beside a large riveted grey vault-like door with a jagged hole in it, then walks past a grey panel with a power outlet, and finally heads toward a doorway in a purple room while pulling on a blue jacket. In the last frames Bart, the spiky-haired boy in an orange shirt and blue shorts, stands with his hands on his hips behind Milhouse, who turns and raises an arm, pointing upward. The setting is a purple-walled room with wooden floors, windows and a wooden railing, with a cardboard box near the vault door.

Written by an AI model from frames of this moment, so small details can be off.