>> in operation fenix his mission is very different and the stakes are higher. he has to accompany the transporter at all times and train him to collect good intelligence. this requires him to spends all day on the johnson, posing as the transporter's assistant. but there are two condition that his complicate things .

>> the other condition complicating mauer years yo's life is having tonight in constant contact with the gorillas. before entering operation fenix he was assign today a police station attacked by a 50-man squadron of the farc. for nearly an hour with 11 other policemen, he repelled the attacks. two of his fellow officers were killed and resentment does not heal easily. >> instead of flotation device to his save him from drowning he find legal officers who are determined to kill him .

>> he never felt more inclined to abort the mission than after this encounter but this is precisely the sort of incident that helps earn the trust of the gorillas. shortly thereafter the transporter and mauricio decided to work in separate johnsons because the transporter was being summoned more frequently to the camp. on several occasions he had seen reyes himself. in operation sodoma in the interior of the country nelson patrols the same spot so many times he begins to memorize the area's landmarks . >> in order to avoid a clash

between troops, squadron commanders are struck today send scouts where they are in relative proximate immaterial it i to each other so the scouts with "cocaine army" immediate and coordinate the safe passage of each squad ron. it's not long to have nelson is order today act as a scout . >> it's quite common to find women in mobile squadrons of farc.

>> alludes units of the army and national police who fight the farc never include females. so seeing a woman dressed in camouflage and carrying a rifle was a relief to nelson. seeing this woman in particular, went a bit beyond belief. >> it was as if the gill belong today a higher class of gorillas as if maybe she belong today the place the suspected the mules loaded with sardines, medicine and beer were heading.

the two squads remained together for a couple of days which gives nelson the opportunity to spent a little bit more time with her and try to decipher where she comes from, but talking to a militant about personal things is never easy. >> so good was the rapport between them that it ended up being counter productive.

being counterproductive. >> that warning could only mean that the girl was involved with an officer of much higher rank. and although it drove them apart at the very least it confirmed the proximity of high-ranking leaders. but as nelson sorts out his sticky situation, freddy and illiana fall right in to another one. >> we're following stories of people who died in the desert. >> the borderland marathon. >> no one's prepared for this journey. >> experience al jazeera america's critically acclaimed original series from the beginning. >> experiencing it has changed me completely. >> follow the journey as six americans face the immigration debate up close and personal. >> it's heartbreaking. >> i'm the enemy. >> i'm really pissed off. >> all of these people shouldn't be dead.

>> it's insane. >> the borderland thanksgiving day marathon. on al jazeera america.

on tech know, >> i landed head first at 120 mph >> a shocking new way to treat brain injuries >> transcranial direct stimulation... don't try this at home... >> but some people are... >> it's not too much that we'ed fry any important brain parts... >> before you flip the switch, get the facts... >> to say that passing a low level of current is automatically safe, is not true >> every saturday, go where technology meets humanity... >> sharks like affection >> tech know, only on al jazeera america ♪ ♪ things are progressing well in operation fenix. the transporter frequently enters the camps. mauricio continues patrolling the river and freddy and illiana are penetrating deeper and deeper in to the community and the local gorillas.

so much so that they are granted permission to buy a generator and a small television. with these items, freddy hopes to liven up their daily routine a bit. but the effect it end up having is completely unexpect go ed. >> during the three years he spent undercover there were two occasions when his superiors asked freddy to support a specialized group of commandos conducting missions against the gorillas. freddy's assignment is to meet them at a specific point. set them up in a hideaway he had built on his farm and provide them with first aid and food . they were never to stay for more than four days to minimize the risk of being discovered.

>> but what lilliana and freddy don't know is that all those visits aren't by chance.

>> ironically, edgar tovar is one of the terrorists that freddy's division has to eliminate and after solving the conflict between freddy and the commander tovar stabilizes the situation of the undercover agents at the most critical moment.

>> central intelligent has already locate the majority of reyes' camps . >> but reyes uses different camps for each meeting. making it impossible to predict his exact location for a long enough period of time to launch an attack. meanwhile, in operation sodoma, in one of his endless marches nelson arrives at a camp much larger than any he has seen before.

>> this must be the place where the meals were headed, but the number of people present in the camp doesn't match up with the ma'am of supplies loaded on the mules. regardless, he starts looking for a clue from his comrade of where exactly this camp is located. the best way to get close to him is bashing the government. >> and back on the border with ecuador dropping off a visitor the transporter meets reyes late

enough to know that he will spend the night at that camp. >> the transporter drops off the visitor and heads directly to the nearest town and contacts an agent that was waiting there for him. >> knowing that they would have the entire night to operate, the army, the air force, the navy and the police act in conjunction and launch operation fenix. >> that might the specialized group of commandos that freddy

hid in his house set during the lunch with the gorillas went in to the army to take possession of the camp after the bomb hit.

>> investigating a dark side of the law >> they don't have the money to puchace their freedom... >> for some...crime does pay... >> the bail bond industry has been good to me.... i'll make a chunk of change off the crime... fault lines... al jazeera america's hard hitting... >> they're locking the door... ground breaking... >> we have to get out of here... truth seeking... >> award winning, investigative, documentary series. chasing bail only on al jazeera america

>> a conflict that started 100 year ago, some say, never ended... revealing... untold stories of the valor... >> they opened fire on the english officers... >> sacrifice... >> i order you to die... >> and ultimate betrayal... drawing lines in the sand that would shape the middle east and frame the conflict today >> world war one: through arab eyes only on al jazeera america ♪ ♪ in operation sodoma, nelson has two more years to go of

early mornings, sleeping on the floor, and snakes on the menu. while observing and recording everything that he sees in his endless patrols. suddenly a doctor and a dentist from the troops show up at intelligence headquarters looking to defect. >> these images originally published in columbia showing them fleeing the area identified by the doctor and dentist's gps. knowing absolutely nothing about this movement. nelson once again pass buys the big camel during one of his patrols and the scene he find is very different from what he had seen before.

>> so much movement could only mean that someone really big was there. and although it's impossible to figure out who it was at that moment, nelson concludes that it's definitely a good target. with his commander's sketchings coupled with knowledge of various geographic references in the area he knows he can give an approximately location of the camp.

>> after several days of travel, nelson reaches a road, flags down the first motorcycle bike he sees, and begins his journey back to civilization from a pay phone he calls his contact on the day that he was posing as a street carven door.

>> the period of time nelson's comrade had given him to complete the intelligence operation was 15 days. mean that this columbian authorities have little time to act before he would be declared an deserter and the gorillas would change their position. bombings are already known to be effective, but this camp is much larger than reyes'. meaning more gorilla resistence. for the surrounding gorilla camps hearing the bombs did not necessarily mean that their commander was dead

.

>> a year and a half for mauricio, two and a half for lilliana, three for fredy, and five for nelson, regardless of the time spent inside, these experiences leave their marks .

former fbi special agent ali soufan. >> if that specific information was shared with to the fbi agent 911 could have been stopped at its early stages. >> the ethics of torture, preventing terrorism and combatting isil. >> islamic state, their strategy differs from al qaeda because

for the first time now they are controlling land. >> every saturday join us for exclusive, revealing and surprising talks with the most interesting people of our time. >> only on al jazeera america. >> officer darren wilson resigns from the ferguson police department as protests continues over the grand jury decision to clear him over the death of michael brown an emotional reunion between a mother and 4-year-old son, after four