Review: ‘The Power’ imagines a world where girls fight back, but the show could use more of a spark

One needn't strain hard to find the metaphorical aspects of Amazon's "The Power," which imagines the terrifying scenario (to parents, anyway) of what would happen if teenage girls could suddenly shoot lightning from their fingers. But the series gets lost somewhere between the global implications of that and its individual stories, juggling characters and subplots in a too-slow-developing season that could use more of a spark.