investigator adrian sandoval is the case agent for one of the buildings. division 9.ile investigator drake carpenter is the case agent for the other, division 1. they're about to rush the tiers where their targets are housed. >> everything is element of surprise. so the potential for stuff to go wrong is high. >> you got one time in cell 7? >> cell 4. >> two times. where do you want them? >> it really went as well as it can go. able to ride on the tier security, in the day room, the rest of the guys caught in the hallway, the corridor. they were all secured. guys that normally are not mad about seeing me, don't look real happy right now. >> be advised, 83 went smoothly. three of our five targets were in the day room. no incident. >> it's your birthday? happy birthday, man. happy birthday. this your party. just ain't no cake. >> the first round-up is over within 15 minutes. now that one tier's down, authorities have ten more to go. they're already moving the gangster disciples off the tier. they'll transfer them to other tiers or divisions. meanwhile, the team division

ciu investigators, adrian sandoval and drake carpenter have a pair of street informants from those gangs, the maniac latin disciples ready to go to work for them. >> it's good to have guys like me out here, there's go tock a lot of shooting. >> these confidential source is offered to set up a west side drug ring in return for money. we're calling them poncho and lefty for their protection. >> who can get us to this? >> i can. >> you can? >> yeah, i can. >> you got a kilo? >> there are territories in chicago. sometimes they will work together if there's a financial opportunity. poncho and lefty are giving up members of a black street gang that they do business with. >> all about opposition, all about money. especially op on the west side. it doesn't matter what gang you're in. >> as a first step, the sheriff's police are sending an undercover officer to buy heroin from the ringleader. >> it doesn't serve a lot of people. we only serve a select clientele and our informant is one of them. >> sandoval rides with one of four unmarked units while the deal goes down. >> where is he at now, j? >

now he's back in custody, facing new charges, and investigators adrian sandoval and drake carpenter givehim one last chance to work a number. >> so how many people came down? >> how many people came down were targets you were talking to me and him about. a lot, right? we were trying to see how good and solid your information was. whether you were keeping it real with us. >> was i keeping it real? >> absolutely. it's not over for you yet. but the game has changed. >> remember when we said the first person in the car gets to drive. you were the first person. we were setting this up before it came down. there's more targets that we talked about that aren't in here, right. >> you still want to try to work a number? we're going to arrange that are if you. you're going to be given that opportunity because you did before. you can say you don't and leave and go back to the holding cell with the rest of the guys going down in the street conspiracy case. the window of opportunity is still there. hasn't closed completely. but now you have to be more thorough. you have to have better stuff. a lot of

adrian sandoval and this pair of informants who we call poncho and lefty started an informant to nab a drug ring. the plan takes a 180 degree turn a week later. it's at this playground that gunfire erupts in avon dale park, a neighborhood on the northwest side. bullets strike two little girls, a 7-year-old and a 2-year-old, piercing in the back and grazing the other in the head. both survive their injuries and police capture the alleged gunman, a maniac latin disciple trying to shoot at a rival and missed. >> this was an outrageous act. >> chicago awe new superintendent declares war on the maniac latin disciples. >> the organization will be held accountable for the actions of one of them. >> it's a turn of the tide and let everybody know we are not playing and we are going to set an example. if you are shooting kids, we are hitting the whole gang. >> poncho and lefty find themselves caught in the middle. prior to the shooting, they helped sandoval map out the citywide hierarchy of the organization. >> so the governor? >> he was with the minsters. >> that are information takes on a wh

investigators drake carpenter and adrian sandoval is lining up a new street informant, whom we'll call niko, to protect his identity. after getting out of jail on bond, niko applied to work with investigators as an soi or source of information in exchange for money. >> this will be his soi pact and we'll get all his vital information here. his name won't exist on anything. he's been officially given a number. this number will go from him from here on out and we'll also give him an opportunity to pick a name. that name will be used when he gets paid. >> niko's off to a promising start already. he's provided them the address of an alleged drug ring on the city's northwest side. police have made 29 arrests at the house in the past. >> i mean there's even a rape charge that came out of that property also. >> as sandoval looks up the prior arrests, he comes up with a major player. >> this guy's a high ranking -- he stays there? >> yeah, that's the one. >> holy cow. >> yeah, i seen him -- >> yeah, he's on the land low. >> that isn't the only offender tied to the residence. >> all of these in