Suicide Squad (out Aug. 5) takes place in a post-Superman world, following the events of Dawn of Justice, as the government grapples with how to respond the next time an alien visits Earth with less noble intentions than the Man of Steel. The answer, according to ruthless intelligence officer Amanda Waller (Viola Davis), is to recruit society’s most vile criminals, armed with lethal skills and superhuman powers. Her first target is possessed archaeologist June Moone/Enchantress (Cara Delevingne).

Waller’s program doesn’t get a green light, though, until Midway City is threatened by a powerful mystical enemy, and Waller needs to activate the whole squad of prisoners. The baddies get a break. Deadshot (Will Smith) has his Second Amendment rights ­reinstated, Harley (Margot Robbie) is carefully excised from her birdcage, Diablo (Jay ­Hernandez) is released from his own fireproof fortress of solitude, Boomerang (Jai Courtney) and Slipknot (Adam Beach) strap their weapons back on, and Killer Croc ­(Adewale Akinnuoye-­Agbaje) is popped from his swamp. The one condition for their restricted freedom: Obey orders or die, a rule strictly enforced by squad leader Rick Flag (Joel Kinnaman), his samurai Katana (Karen Fukuhara), and the explosive devices inserted into their necks courtesy of Wayne Enterprises. (Thanks, Batman!) Throwing a wrench into all these plans is the tatted Gotham City arch-criminal, the Joker (Jared Leto), and his laser-like plan to reunite with his true love, Harley, mission be damned.

But a funny thing happens while these scumbags try to become heroes – they each must absolve themselves of their crimes even if society won’t. And that’s where it gets interesting. A layer of humanity – and sadness – resides underneath these characters’ stories as they each grapple with whether they can be redeemed.

I'm not a huge comic reader but I dabble so could I get a run down of the suicide squad and any comic books that are really worry the read before the movie comes out? I have hopped on wiki and got the basic idea but any specifics would be gratefully appreciated.