Supergirl

A woman in a striped shirt looks surprised in a dark, red-lit environment, then the scene cuts to a woman in a red and blue superhero costume crouching on a street, followed by a woman with glasses and a grey sweater standing with arms outstretched against a bright sky, then two women, one in a black jacket and one in a superhero costume, stand together in a room, then a woman with glasses and a striped shirt smiles while talking to someone off-screen, and finally the two women stand together in a room with a third woman, the one in the superhero costume smiling and gesturing.