Detective 582 (Jan. 88) is not merely a Millenium crossover, it was also part of a four issue telling of the heroes’ invasion of the Manhunter temple in the Louisiana bayou. The same week this issue came out, The Spectre, Suicide Squad and Captain Atom also had stories of the attack. Only this issue really crosses over with the others, which remain largely separate tales.
Mary Jo Duffy managed to pull off a good issue, despite all the needed tie-ins, with Norm Breyfogle back on the pencils, and Pablo Marcos on the inks.
The first part of the story picks up from the previous issue of Batman, in which Commissioner Gordon had been replaced by a Manhunter robot. Batman tracks the actual Gordon, and explains to him the impersonation, which allows the entire plot of Millenium to be explained. It turns out Gordon was intentionally lured away, and was being set up to be killed, though Batman prevents that.
Batman runs into Jim Corrigan and Kim Liang, in a passage mirrored in the Spectre. Corrigan accompanies Batman to the temple, and though we do not see the Spectre, the heroes see the results of his work, all the decommissioned Manhunter robots.
Batman and Corrigan find the place where the Manhunters are keeping the human prisoners, and as Corrigan frees them, Batman penetrates to the heart of the temple. He comes across Karin Grace, learning of her plans to blow up the temple, but more importantly, learning of the existence of the Suicide Squad.
And though Captain Atom does not appear, the lack of radiation, and snowfall, at the end of the story reference events in his book.
It’s all a bit frantic, but really, far better than it might have been.