Former prison chaplain Matt and his son Andrew enter the jail along with paralegal Jaclin. Nate benefits from relationships he's built.
New participants Stephanie, Johnny and Angele settle into the jail. Alan and Nate get pulled into a dispute with potentially deadly consequences.
Matt struggles with his cellmate and Jaclin loses her temper. The last new volunteer, Emmanuel, starts his time in jail.
Angele is surprised to be the center of attention, while Andrew realizes he can form a connection with his new cellmate. Nate celebrates a birthday.
Drug use begins to blur boundaries for Stephanie, and Jaclin's new hobby attracts attention. Angele is drawn to another inmate.
A football betting pool starts conflict in Zone 500. Meanwhile, in the women's annex, a gas leak forces the inmates to relocate.
Angele and Gabrielle get closer. Andrew worries that other inmates are spreading a rumor about him and Stephanie feels unsafe in her room.
When Jaclin ends up on the wrong side of a strong personality, she's forced to make a difficult choice. Matt struggles to continue in the program.
Jaclin shares observations from her time in the program and Matt makes a big decision. The women throw an unforgettable birthday party for Angele.
A new cellmate unsettles Alan, who's reaching the end of his emotional rope. Nate becomes aware of inmates planning to bring drugs into the jail.
Angele makes a decision that could endanger the whole program, while Johnny's problem with another inmate generates friction.
Faced with an unprecedented crisis that could threaten all of the participants' safety, Colonel Adger decides to take drastic action.
Soledad O'Brien moderates a reunion with participants from the second phase at Fulton County Jail, airing out old resentments and hot-button issues.
Catch up with the participants six months after this season's dramatic finale to see where they are and what they've learned.
Six months out from their time in jail, the rest of this season's undercover inmates reveal the life-changing impacts of participating in the experiment.
Newly elected to office, Sheriff Lamb sends six undercover volunteers into the county jail with a secret seventh participant.
With three participants in jail and two being processed, the sheriff gets his secret program up and running.
The volunteers are now embedded but struggle to maintain their distance from each other, while one participant threatens the entire program.
As the participants begin focusing on their missions, some have immediate success while others meet resistance. Sheriff Lamb has to make a tough call.
Thievery and the intense racial politics of jail test the volunteers. Some become targeted victims while others turn into aggressors themselves.
After climbing the ranks within his pod, David tries to remember which side he's really on. Abner continues to play the role of enforcer.
Crossing the halfway point of their missions, the participants struggle to make progress. Some reach their breaking points as pod drama boils over.
Secrets are too difficult to keep for one participant as race politics, jailhouse theft and maintaining cover stories pose challenges for the group.
Sheriff Lamb and his team face a difficult decision when one participant's actions yield serious consequences that place the rest of them in danger.
As one volunteer's cover is blown, the sheriff must decide to either end the program early or risk the lives of the remaining participants.
All seven participants meet with the sheriff and his team for the first time to discuss the program and the craziest moments of their time in jail.