Clayface has been hired to be the muscle on a score, and just the muscle. He's a smart guy, but maybe not the smartest, and doesn't take kindly too being called an idiot, something that goes all the way back to his acting days, with his anger eventually causing him to become Clayface. So when the goons he's working with tell him to shut up and do his job when he suggests they rob a small jewelry store, Clayface sort of flips out on them, killing them all. Realizing he just sort of massacred a handful of guys, Clayface decides to lay low, and emerges form the sewers disguised as one of the men, only to find riots in the streets of Gotham, caused by the apparent deaths of the Justice League.
Clayface latter hangs out at a Gotham bar which has become infested with some of Gotham's worst. Dollhouse, Great White Shark, Zebra Man, White Rabbit. It's here where Clayface learns about the Secret Society, and asks how he can join. White Rabbit sort of puts Clayface down and tells him that if they wanted him to be a member, they would have made him a member by now. When a transmission form an apparent resistance force makes it on to the TV, Clayface comes up with an idea to gain the attention of the Society.
Clayface sneaks his way onto the resistance camp and figures out something is up with them, they're all clean shaven and not exactly hiding from anyone (the Society). When Clayface makes his way to some people, they greet him with guns, and he greets them with his Clay, realizing they're some sort of army instillation. With the men outside defeated, Clayface makes his way inside the base, and starts to wreck shit, despite the general telling him he's an idiot making a big mistake.
With all the soldiers down, Clayface tries to contact the Society, only to find out that the Society had started the resistance in an effort to draw out any stray super heroes, and begin to berate Clayface, which of course sets him off, causing him to accidentally trigger a self destruct switch at the base.
Later, Clayface is once again in the bar, where he's recruited for a similar job seen at the beginning of the issue. Clayface agrees to just be the muscle, but he's already come up with an ambitious plan for himself.