A mother and father celebrate Halloween with their children, carving pumpkins and getting dressed for trick-or-treating. A look of concern crosses their faces when handing their exuberant children their store-bought super hero costumes -- Batman and Wonder Woman.
They come home to their Batman and Wonder Woman jack o' lanterns, and the children are exhausted, falling asleep in their costumes.
As the children are laid into their beds, we see that the children each chose an opposite-gender costume, revealing the concern the parents had. Their father tucks them in, and looking on before closing their bedroom door, whispers, "My heroes."