The series is a sequel to Miller’s 1986 Batman miniseries The Dark Knight Returns and the 2001 miniseries The Dark Knight Strikes Again, continuing the story of an aged Bruce Wayne resuming his identity as a crimefighter, aided by his sidekick Carrie Kelley (Robin) and featuring an ensemble of DC Universe characters including Superman, Green Lantern, and Wonder Woman. In DK III, Ray Palmer restores the inhabitants of Kandor to full-size, but they immediately begin to terrorize the Earth. Batman sets out to assemble his former allies against the invaders.
The series is accompanied by a series of one-shots which fill in events between issues. They are written and drawn by Frank Miller, which continues his experimentation with noir-style writing and divisive art style.
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