there's banks and brokerage houses, museums, but i haven't seen any reports of break-ins. charlie, the thing is, we're pretty much looking at most of downtown here. is there any way to be more specific? this is the best i could do with what i had. that's not all you have. we just found this pad in donahue's car. it's filled with calculations. these are dantzig-wolf decompositions, network interdiction strategies... it's pretty high-end stuff. can you use any of it to figure out where he was gonna try to black out? yeah, yeah. i'm gonna need to take a look at these. in the meantime, i'll see who else donahue was in bed with. maybe that's who murdered him. hey. wait, wait. listen. this, this little conversation you had with dad. oh. yeah. um... sorry. i just... no, you're right. you're right-- i had no right to tell him about you and agent warner. yeah. exactly. i don't know. you seem to be getting along real nicely with robin, you know, and... you seem a lot happier. well, charlie, you don't know what you're talking about, okay? so,

i mean, i appreciate the thought, but... all right? sorry. thanks. go ahead, take a look. let me know what you come up with. okay. charlie: none of the three substations attacked directly affect the downtown area. you know, they're too far out, like boyle heights and mission hills and silver lake. no, the blackouts were due to the broad-line reductions. the operators just shut the area down. right, right. so donahue did these calculations in order to predict the human operator's reaction to his attacks? i mean, that's... that's so impressive. impressive, yes, but it gets us no closer to discovering his intended target, does it? no. i know. i, i've performed every particular permutation i could possibly perceive. i've gone over and over these three attacks i can't narrow it down. what about the other substations that affect downtown? what about them? he didn't choose the others. yeah. that's precisely my point. why not? presumably because they would not result in a blackout that included his target.

an exclusionary approach? run calculations on the other substations, see what area of downtown is omitted. plus, it is a more powerful approach than the one you're using. liz: you know what, i'll catch you later, all right? i'll catch up with don. what do you say, gents? how you doing? what? downtown two days in a row, huh? lucky me. forget it, epps. you already blew your one chance with me. no way. i thought i was given a rain check. you remember our, um, drug dealer friend operating out of the racetrack? yeah. tabakian? he's decided to cooperate and help us go after the salvadorian cartel that was supplying them. oh, yeah? well, that's a good get for you, huh? yeah. bottom line, tabakian and i are gonna be shacking up in a safe house... in san diego. ha-ha. while he spills everything to the us attorney. so... you know when you take off? today. i gotta run. we're gonna process him, but, uh... i'll call you when i get back. yeah. i'll make sure it doesn't rain.

you know, my brother can do things with math. he's a genius. oh. got it. you narrowed down the area? yeah. so it turns out, there are 12 substations whose failure would have directly or indirectly caused a downtown blackout. overlaying the boundaries of the three attacks gave us an initial target area. yeah, but, charlie, that area was too big. it's too vague. i know. mapping the three blackouts was just the first step. the real key was examining the substations that donahue did not attack. he rejected the nine others as targets because the blackouts they would have caused didn't include this area. colby: you're saying this is the area he wanted to black out because that's only a couple blocks from here. it's the j. edward rice building. the rice building. yeah, right. rice. what? that's the downtown federal detention center. donahue's choreographing a prison break.

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[ female announcer ] why wait? man: i don't really know how we can take any more precautions against a breakout if you can't tell me which prisoner you're talking about. right. well, we're working on that. as soon as we get the name, we'll get it to you, okay? what about the power- failure scenario we were discussing earlier? well, there's no denying it. everything here runs on electricity. cells open and close electronically.

locks are automated. we rely heavily on surveillance cameras. yeah, and what happens if the power gets cut totally? we're screwed. 45 guards. 2,200 prisoners. but that's exactly why the detention center has a backup system. we have four 30- megawatt generators. diesel-powered. any time we fall off the power grid, they automatically kick in. right. and where are they at? sub-basement, totally secure and no inmate access. for the last three nights during the blackouts were there any incidents? anyone trying to get to the generators maybe trying to disable them? no. powered us through, no problems at all. look, if-if, if these blackouts are someone trying to get to us, they haven't done their homework. we're the last place to feel any effect. hi. you look awfully contemplative. is it pondering some mystery of the universe? hardly. i'm pondering the federal detention center. oh. charles said you suspect some possible jailbreak.

yeah, but there's 2,000 prisoners and i can't connect any of them to donahue. i don't know who he was working for. how do you know donahue was working for someone else? well, there has to be someone else. someone murdered him. i'm not questioning whether someone else was involved. i think that much is a matter of near certainty. okay, now you're just confusing me. well, what i mean to say is... you see, all along you've been applying a kind of bottom-up analysis. it all started with the unfortunate gentleman who was electrocuted. alejandro munoz. that's right, and then you worked your way up to donahue and now you're working up to someone above donahue. that's standard procedure. we're always looking for the bigger fish. yeah, but how do you know you're even fishing in the right direction? you see, in 1959, richard feynman gave a very famous lecture. it was called, "there's plenty of room at the bottom," and it altered the thinking of a whole generation of scientists because it changed their focus to thinking smaller and smaller

instead of larger. now, see, you've gone from munoz to donahue, and now you're looking even farther up the chain. perhaps you need to go in the opposite direction. you're suggesting that the plan to blow up the substation just started with munoz. i think it's worthy of consideration. you're a genius. head of the class. don: look, the prison is immune to blackouts. hey, guys. how do you mean, "immune"? well, they have a backup system. the recent blackouts didn't even ruffle their feathers. there's the possibility of other targets in the area. yeah, but i'm not wrong about the prison. three nights in a row, the backup generators kicked in and-and there was no impact. listen, you cannot have an event in a closed system without subsequent impact on that system. all right. impossibility. don't go all isaac newton on me. we'll go take another look at the map, all right? sir isaac newton. hey. we just found the link between the prison and the blackouts. tell me again how i'm wrong. hey, a link to donahue? no, it's alejandro munoz.

turns out munoz is salvadorian. has close family ties to a major drug cartel. the same cartel that was supplying the drugs to tabakian's operation at the southland downs racetrack. tabakian. colby: yeah, and he's currently being held at the federal detention center. it's gotta be who they're trying to break out. tabakian had a deal with the us attorney to testify against the salvadorians. colby: well, then, maybe the blackouts were an attempt to cover a hit, try and get an inmate close enough to him to shank him or something. no, no. the guy's in solitary. i mean, they're not gonna let anyone near him. and besides, the blackouts didn't have any effect on the prison operations. i don't understand how they're part of the plan. well, the blackouts had to have had some impact. we were there. they didn't. you said the prison ran their generators three nights in a row. how are the generators fueled? on diesel, charlie. that's a pretty large facility. they'd have to have burned through a lot of fuel. okay, so what if that was the plan? the first three just run the fuel tanks dry, and the fourth night they're in the dark. yeah, but they're not gonna just let the tanks go dry. i mean, they just call up and get an emergency order of fuel. don: it's the truck.

it's the truck. it's an unscheduled delivery. oh, they get that truck in there, they will have a way to break tabakian out. yeah, but wait a minute. don just said that he's testifying against them. why are they gonna spend the time coming in to break him out? be a lot easier to just kill him. they're going after him. this isn't a break out. these guys are trying to break in.

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man: opening sally port one. fuel transport coming in. hey, you guys are right on time. (silenced shots fire) (buzzer)

hi. how you doing? liz warner, fbi. i'm processing out a prisoner, ivan tabakian. no weapons allowed inside the prison, agent warner. you're gonna have to check that here. thank you. i can't get liz. colby: probably no cell service inside. i'm still not getting anything from the prison switchboards. fuel truck. i got a man down.

is he dead? yeah. thing's empty. it's a trojan horse. the guys are already inside the prison. swat's out on a call right now-- they'll be at least 20 minutes. all right, look, we got 45 officers in there on our side, right? yeah, but their guns are locked in the armory-- it's gonna take time to distribute them. if we wait, it's over-- i say we make our move. let's go. (buzzer) assistant u.s. attorney diane verano. nice to meet you. special agent liz warner. i'm gonna be heading the transport and safe house detail. i just have some paperwork for mr. tabakian to sign, then he's all yours. no problem.

hey. you guys... (silenced gunshots) don: hey! fbi. you've been breached. you got guys in here with weapons. they already killed one of your guys-- get some men to the armory and break out the weapons. go, move! megan, go with him! got it. got it. (buzzer) mr. tabakian. well... this is even better than i expected. (alarm buzzing) man (over p.a.): attention all personnel! attention all personnel! be advised, the entire facility is now on lockdown. hey, where's the utility room! end of the corridor! go left!

all prisoners, return to your cells immediately. all prisoners, return to your cells immediately. we have a deal. you have to protect me. the entire facility is now on lockdown. (indistinct shouting) don't move! how many more in there? it's clear, you guys. come on. let's go! this is too hard to defend. don, we got to go. don: liz, come here. come on. don: all right. it's clear. clear on this side. you guys stay close. you hear gunshots, you get to the ground. put him in the guard station up there. door!

get down! get down! is he all right? (groaning in pain) we got a prisoner down! we need emt right away! copy that, medical team four minutes out. got no pulse. all right? yeah. okay, just keep breathing, keep breathing. (groans) how is he? the bullet passed clean through. they don't think it hit any vitals, so... he'll live. you guys saved his ass, epps. not to mention what you did for me back there. hey, now, don't sweat it. you kidding? but now i owe you one. well, that's just the way i want it, so... you know i don't like being in debt. no? what are you gonna do about it? get even.

all right, i'm ready for you, tough guy. colby: hey, don. you got the warden waiting in his office to talk to you. all right, one sec. i got to run. mm-hmm. i want to get him out of town before they have a chance to try again, so... hey. what are you guys doing up so late? hey, hey, charlie told me what happened today, and, uh, we were worried. well, he was worried. i-i just stayed up to savor an "i told you so" moment while it was still fresh. hold on, we dealt with this. did we?

there was so much going on. accusations about my math being shifty. all right, charlie, have your moment, go ahead, say it. i told you so. i told you so. all right, there you go. well, that's about as much brotherly love as i can take tonight-- i'm going to bed. yeah, i'm done, so i'm gonna hit the hay. hey, look, uh... about robin. yeah, i said we-we're... i mean, we're sorry, you know? well, she broke up with me. about a week ago. oh. she dumped you. shut up. no, no, look, donny, uh, i'm, uh, i'm really sorry. what happened? you know, it takes two, and, uh, i guess she didn't want to be one, what can i say? mm. well... you know, maybe she'll change her mind. yeah. anyway... hey, now, wait a minute, wait a minute. that-that's a good sign, isn't it? you're not the one that pulled the plug. you were willing to go through with it.

that's a good sign, isn't it? a step in the right direction? i guess, if you say so. hey, look, i'm not really tired. there's got to be something good on late night. you know, that's when they play the classics. yeah, i mean, if we're gonna stay up, then i'll just pop some popcorn, and... guys, you don't have to do this. do what? seriously, go to bed. i'm okay. hey, come on, you don't even live here-- why are you telling us what to do? (theme song to taxi playing on tv) all right. thanks. (theme to taxi continues) don't mention it. captioning sponsored by cbs paramount network television and brought to you by toyota. moving forward. choose any direction as long as it's moving forward. captioned by media access group at wgbh access.wgbh.org

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