Lord Death Man is a'comin' as the cave he, Calvin and Anya are in, fills with poison. Having no actual use for the oxygen in his lungs, Calvin "gives" it to Anya, as they escape while Lord Death Man succumbs to the gas... temporarily, of course.
When Calvin and Anya catch their breath, Casey radios in to inform them a little bit about their new friend in Lord Death Man, and despite him not being part of the mission, Calvin can't allow himself to let LDM escape, and goes after him, while Anya goes deeper into the facility, looking for a way to resurrect Calvin, all under the watchful eye of Dr. Darrk.
Calvin finds LDM shortly after he comes back to life, and the two start to fight. LDM realizes that Calvin isn't going for the killing strikes, and eventually just starts to literally laugh at Calvin's attacks, eventually knocking him out and impaling him with a knife to the heart.
When Anya gets deeper into the lab, she eventually comes across Dr. Darrk, and given her past with the League of Assassins, the two of them have history, and exchange verbal (and physical) blows, after Darrk begins to flood the cavern Calvin and LDM are in.
Being undead himself, Calvin comes back shortly after being impaled, which LDM takes notice of. Seeing how similar they are, LDM does the whole "let's work together" thing (only crazier) with his new pal "Golden Ducky." Calvin declines the offer, and properly introduces himself to LDM by throwing a fucking shark at him, and round two begins.
Back at the other fight, things are pretty evenly matched until Anya pulls out her trump card, you see, while the self destruct sequence (which Darrk disabled) was ready to blow the lab up in smoke, Anya discovered on room that would seemingly be unaffected, thus probably pretty important to the League, and Ra's al' Ghul. What is this room? Well, it's full of little developing babies, which Anya believes to be new vessels for Ra's but if you're in the know, they're Damian Wayne clones. So, realizing she needed leverage, she put a bomb in the room, and has got her finger on the trigger. With Darrk out of options, he's forced to talk business with Anya, meanwhile the one exit from the cave is sealed off, and LDM fails to escape.
Cut to some time later, Calvin is attempting the same escape as he did last issue, only he makes it this time. Why? Because he's alive again! With his life restored, Calvin thinks about taking it a bit easy, but a mission to rescue someone from Intergang pops up, and that notion is short lived. But how did Anya bargain with Darrk to get Calvin's life back? Well, since Darrk was under his own less-than-suitable returned from death situation, he was offered a better option than his bio-suit... The Talon formula.