Warner Premiere's The Dark Knight Returns: Part 1 told the equivalent of the first two issues in Miller's four-issue 1986 story. That took care of the Dark Knight actually returning, after decades of retirement, to a Gotham City that's even meaner and more brutal than before. The grizzled, possibly unhinged Bruce Wayne brought order to the militarized mass gang the Mutants there, cementing his return as Gotham's fist.
In the next installment, however, things get crazier. Batman finds himself contending with the city's police, as well as the re-emergence of the Joker. That would seem to be enough to have on his plate, but the dust-ups in Gotham attract the attention of a very Reagany president who calls in Superman, now a government stooge, to shut down his old friend. Batman, as you'd expect, is ready to strap on some armor and slap Supes around like he's just another hapless cop.
Speaking of which:
Once again, Jay Oliva directs from a script by Bob Goodman, who opted to hew very, very closely to the source material. Bruce Timm, the steward of animated DC output going all the way back to the absolutely fantastic Batman: The Animated Series, serves as executive producer.
By now, fans of Kevin Conroy have probably made peace with the fact that it's erstwhile RoboCop Peter Weller voicing the older Bruce Wayne. He's joined by Modern Family's Ariel Winter as Carrie Kelly, Mark Valley as Superman, Michael Emerson as the Joker, Michael McKean as Dr. Bartholomew Wolper, and David Selby as James Gordon.
The Dark Knight Returns: Part 2 arrives on Blu-ray, DVD, and all manner of digital media on January 29th.